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-rw-r--r--converter/other/Makefile12
-rw-r--r--converter/other/cameratopam/camera.c1
-rw-r--r--converter/other/cameratopam/cameratopam.c1
-rw-r--r--converter/other/cameratopam/identify.c1
-rw-r--r--converter/other/cameratopam/ljpeg.c1
-rw-r--r--converter/other/fiasco/binerror.c1
-rw-r--r--converter/other/fiasco/codec/coder.c1
-rw-r--r--converter/other/fiasco/codec/options.c1
-rw-r--r--converter/other/fiasco/codec/wfalib.c1
-rw-r--r--converter/other/fiasco/fiascotopnm.c1
-rw-r--r--converter/other/fiasco/input/read.c1
-rw-r--r--converter/other/fiasco/lib/bit-io.c1
-rw-r--r--converter/other/fiasco/params.c1
-rw-r--r--converter/other/giftopnm.c1
-rw-r--r--converter/other/ipdb.c1
-rw-r--r--converter/other/jpeg2000/jpeg2ktopam.c1
-rw-r--r--converter/other/jpeg2000/pamtojpeg2k.c1
-rw-r--r--converter/other/jpegtopnm.c1
-rw-r--r--converter/other/pamtotga.c1
-rw-r--r--converter/other/pamtotiff.c1
-rw-r--r--converter/other/pamtouil.c1
-rw-r--r--converter/other/pgmtoppm.c1
-rw-r--r--converter/other/pnmtojpeg.c1
-rw-r--r--converter/other/pnmtops.c1
-rw-r--r--converter/other/pstopnm.c1
-rw-r--r--converter/other/rletopnm.c1
-rw-r--r--converter/other/svgtopam.c1
-rw-r--r--converter/other/tiff.c1
-rw-r--r--converter/other/tifftopnm.c1
-rw-r--r--converter/other/xwdtopnm.c1
-rw-r--r--converter/pbm/g3topbm.c1
-rw-r--r--converter/pbm/pbmtoascii.c49
-rw-r--r--converter/pbm/pbmtoepson.c1
-rw-r--r--converter/pbm/pbmtonokia.c1
-rw-r--r--converter/pbm/pbmtopk.c1
-rw-r--r--converter/pbm/pbmtoppa/pbmtoppa.c1
-rw-r--r--converter/pbm/pbmtoxbm.c1
-rw-r--r--converter/ppm/ppmtobmp.c1
-rw-r--r--converter/ppm/ppmtogif.c1
-rw-r--r--converter/ppm/ppmtompeg/gethostname.c1
-rw-r--r--converter/ppm/ppmtompeg/mpeg.c1
-rw-r--r--converter/ppm/ppmtompeg/param.c2
-rw-r--r--converter/ppm/ppmtompeg/ppmtompeg.c1
-rw-r--r--converter/ppm/ppmtompeg/readframe.c1
-rw-r--r--converter/ppm/ppmtoxpm.c1
-rw-r--r--converter/ppm/tgatoppm.c1
-rw-r--r--converter/ppm/winicontoppm.c1
-rw-r--r--converter/ppm/ximtoppm.c1
-rw-r--r--converter/ppm/xpmtoppm.c1
49 files changed, 82 insertions, 27 deletions
diff --git a/converter/other/Makefile b/converter/other/Makefile
index 6a3d14ed..b01f66ae 100644
--- a/converter/other/Makefile
+++ b/converter/other/Makefile
@@ -7,12 +7,12 @@ VPATH=.:$(SRCDIR)/$(SUBDIR)
 
 include $(BUILDDIR)/config.mk
 
-TEST_PKGCONFIG_LIBXML2 = if pkg-config libxml-2.0; then echo exists; fi
+TEST_PKGCONFIG_LIBXML2 = if $(PKG_CONFIG) libxml-2.0; then echo exists; fi
 
 ifneq ($(shell $(TEST_PKGCONFIG_LIBXML2)),)
   # pkg-config libxml2 works on this system
-  XML2_LIBS = $(shell pkg-config libxml-2.0 --libs)
-  XML2_CFLAGS = $(shell pkg-config libxml-2.0 --cflags)
+  XML2_LIBS = $(shell $(PKG_CONFIG) libxml-2.0 --libs)
+  XML2_CFLAGS = $(shell $(PKG_CONFIG) libxml-2.0 --cflags)
 else
   ifeq ($(shell xml2-config --version),)
     XML2_LIBS=NONE
@@ -34,12 +34,12 @@ ifneq ($(TIFFLIB),NONE)
   endif
 endif
 
-TEST_PKGCONFIG_LIBPNG = if pkg-config libpng$(PNGVER); then echo exists; fi
+TEST_PKGCONFIG_LIBPNG = if $(PKG_CONFIG) libpng$(PNGVER); then echo exists; fi
 
 ifneq ($(shell $(TEST_PKGCONFIG_LIBPNG)),)
   # pkg-config libpng works on this system
   HAVE_PNGLIB = Y
-  EXTERN_INCLUDES += $(shell pkg-config libpng$(PNGVER) --cflags)
+  EXTERN_INCLUDES += $(shell $(PKG_CONFIG) libpng$(PNGVER) --cflags)
 else
   ifneq ($(shell libpng$(PNGVER)-config --version),)
     # No pkg-config, but we have libpng-config on this system
@@ -192,7 +192,7 @@ tifftopnm pamtotiff pnmtotiffcmyk: \
 
 ifneq ($(shell $(TEST_PKGCONFIG_LIBPNG)),)
   # pkg-config libpng works on this system
-  PNGLIB_LIBOPTS = $(shell pkg-config libpng$(PNGVER) --libs)
+  PNGLIB_LIBOPTS = $(shell $(PKG_CONFIG) libpng$(PNGVER) --libs)
 else
   ifneq ($(shell libpng$(PNGVER)-config --version),)
     # No pkg-config, but we have libpng-config on this system
diff --git a/converter/other/cameratopam/camera.c b/converter/other/cameratopam/camera.c
index 04a6ed01..503551f1 100644
--- a/converter/other/cameratopam/camera.c
+++ b/converter/other/cameratopam/camera.c
@@ -1,3 +1,4 @@
+#define _DEFAULT_SOURCE /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE
     /* Make sure strcasecmp is in string.h */
 #define _XOPEN_SOURCE
diff --git a/converter/other/cameratopam/cameratopam.c b/converter/other/cameratopam/cameratopam.c
index ec33dd31..2c832714 100644
--- a/converter/other/cameratopam/cameratopam.c
+++ b/converter/other/cameratopam/cameratopam.c
@@ -7,6 +7,7 @@
  */
 
 
+#define _DEFAULT_SOURCE 1 /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE 1   /* Make sure string.h contains strdup() */
 #define _XOPEN_SOURCE 500
    /* Make sure unistd.h contains swab(), string.h constains strdup() */
diff --git a/converter/other/cameratopam/identify.c b/converter/other/cameratopam/identify.c
index 02208be6..7e77adb2 100644
--- a/converter/other/cameratopam/identify.c
+++ b/converter/other/cameratopam/identify.c
@@ -1,3 +1,4 @@
+#define _DEFAULT_SOURCE /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE   /* Make sure strcasecmp() is in string.h */
 #include <string.h>
 
diff --git a/converter/other/cameratopam/ljpeg.c b/converter/other/cameratopam/ljpeg.c
index 07791e25..331d258c 100644
--- a/converter/other/cameratopam/ljpeg.c
+++ b/converter/other/cameratopam/ljpeg.c
@@ -1,3 +1,4 @@
+#define _DEFAULT_SOURCE /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE    /* Make sure string.h containst strcasecmp() */
 #include <stdlib.h>
 #include <string.h>
diff --git a/converter/other/fiasco/binerror.c b/converter/other/fiasco/binerror.c
index 80a2e461..9820d853 100644
--- a/converter/other/fiasco/binerror.c
+++ b/converter/other/fiasco/binerror.c
@@ -18,6 +18,7 @@
  *  $State: Exp $
  */
 
+#define _DEFAULT_SOURCE 1 /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE 1   /* Make sure strdup() is in string.h */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 #define _ERROR_C
diff --git a/converter/other/fiasco/codec/coder.c b/converter/other/fiasco/codec/coder.c
index ce4a24f1..1e21994d 100644
--- a/converter/other/fiasco/codec/coder.c
+++ b/converter/other/fiasco/codec/coder.c
@@ -14,6 +14,7 @@
  *  $State: Exp $
  */
 
+#define _DEFAULT_SOURCE 1 /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE 1   /* Make sure strdup() is in string.h */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 
diff --git a/converter/other/fiasco/codec/options.c b/converter/other/fiasco/codec/options.c
index af2cfb48..b9c64efd 100644
--- a/converter/other/fiasco/codec/options.c
+++ b/converter/other/fiasco/codec/options.c
@@ -14,6 +14,7 @@
  *  $State: Exp $
  */
 
+#define _DEFAULT_SOURCE 1 /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE 1   /* Make sure strdup() is in string.h */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 
diff --git a/converter/other/fiasco/codec/wfalib.c b/converter/other/fiasco/codec/wfalib.c
index 75792627..90420d6f 100644
--- a/converter/other/fiasco/codec/wfalib.c
+++ b/converter/other/fiasco/codec/wfalib.c
@@ -14,6 +14,7 @@
  *  $State: Exp $
  */
 
+#define _DEFAULT_SOURCE 1 /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE 1   /* Make sure strdup() is in string.h */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 
diff --git a/converter/other/fiasco/fiascotopnm.c b/converter/other/fiasco/fiascotopnm.c
index 503d023f..e95e27fc 100644
--- a/converter/other/fiasco/fiascotopnm.c
+++ b/converter/other/fiasco/fiascotopnm.c
@@ -15,6 +15,7 @@
  *  $State: Exp $
  */
 
+#define _DEFAULT_SOURCE 1 /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE 1   /* Make sure strdup() is in string.h */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 
diff --git a/converter/other/fiasco/input/read.c b/converter/other/fiasco/input/read.c
index 862fec39..9f4ac993 100644
--- a/converter/other/fiasco/input/read.c
+++ b/converter/other/fiasco/input/read.c
@@ -14,6 +14,7 @@
  *  $State: Exp $
  */
 
+#define _DEFAULT_SOURCE 1 /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE 1   /* Make sure strdup() is in string.h */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 
diff --git a/converter/other/fiasco/lib/bit-io.c b/converter/other/fiasco/lib/bit-io.c
index fdcd70b9..f69343e6 100644
--- a/converter/other/fiasco/lib/bit-io.c
+++ b/converter/other/fiasco/lib/bit-io.c
@@ -14,6 +14,7 @@
  *  $State: Exp $
  */
 
+#define _DEFAULT_SOURCE 1 /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE 1   /* Make sure strdup() is in string.h */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 
diff --git a/converter/other/fiasco/params.c b/converter/other/fiasco/params.c
index 14f1529e..7d0b84ab 100644
--- a/converter/other/fiasco/params.c
+++ b/converter/other/fiasco/params.c
@@ -15,6 +15,7 @@
  *  $State: Exp $
  */
 
+#define _DEFAULT_SOURCE 1 /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE 1
     /* Make sure strdup() is in string.h and strcaseeq() is in nstring.h */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
diff --git a/converter/other/giftopnm.c b/converter/other/giftopnm.c
index 76cf4bff..b0d479d5 100644
--- a/converter/other/giftopnm.c
+++ b/converter/other/giftopnm.c
@@ -19,6 +19,7 @@
    describe the Lempel-Ziv base.
 */
 
+#define _DEFAULT_SOURCE /* New name for SVID & BSD source defines */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 #define _BSD_SOURCE   /* for strcaseeq */
 #include <string.h>
diff --git a/converter/other/ipdb.c b/converter/other/ipdb.c
index d6bd6ef5..1d72cc31 100644
--- a/converter/other/ipdb.c
+++ b/converter/other/ipdb.c
@@ -19,6 +19,7 @@
  *   Authors:  Eric A. Howe (mu@trends.net)
  *             Bryan Henderson, 2010
  */
+#define _DEFAULT_SOURCE /* New name for SVID & BSD source defines */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 #define _BSD_SOURCE   /* Ensure strdup() is in <string.h> */
 #include <assert.h>
diff --git a/converter/other/jpeg2000/jpeg2ktopam.c b/converter/other/jpeg2000/jpeg2ktopam.c
index 405de9c9..b7276241 100644
--- a/converter/other/jpeg2000/jpeg2ktopam.c
+++ b/converter/other/jpeg2000/jpeg2ktopam.c
@@ -8,6 +8,7 @@
 
 *****************************************************************************/
 
+#define _DEFAULT_SOURCE 1  /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE 1      /* Make sure strdup() is in string.h */
 #define _XOPEN_SOURCE 500 /* Make sure strdup() is in string.h */
     /* In 2014.09, this was _XOPEN_SOURCE 600, with a comment saying it was
diff --git a/converter/other/jpeg2000/pamtojpeg2k.c b/converter/other/jpeg2000/pamtojpeg2k.c
index b8905518..3d8a97af 100644
--- a/converter/other/jpeg2000/pamtojpeg2k.c
+++ b/converter/other/jpeg2000/pamtojpeg2k.c
@@ -8,6 +8,7 @@
 
 *****************************************************************************/
 
+#define _DEFAULT_SOURCE 1 /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE 1    /* Make sure strdup() is in string.h */
 #define _XOPEN_SOURCE 500 /* Make sure strdup() is in string.h */
     /* In 2014.09, this was _XOPEN_SOURCE 600, with a comment saying it was
diff --git a/converter/other/jpegtopnm.c b/converter/other/jpegtopnm.c
index ab3b18e5..98552c00 100644
--- a/converter/other/jpegtopnm.c
+++ b/converter/other/jpegtopnm.c
@@ -48,6 +48,7 @@
     
 *****************************************************************************/
 
+#define _DEFAULT_SOURCE 1  /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE 1      /* Make sure strdup() is in string.h */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 
diff --git a/converter/other/pamtotga.c b/converter/other/pamtotga.c
index aca93015..27974dd3 100644
--- a/converter/other/pamtotga.c
+++ b/converter/other/pamtotga.c
@@ -10,6 +10,7 @@
 ** implied warranty.
 */
 
+#define _DEFAULT_SOURCE /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE  /* Make sure string.h contains strdup() */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 
diff --git a/converter/other/pamtotiff.c b/converter/other/pamtotiff.c
index 7b645b23..9270fd4c 100644
--- a/converter/other/pamtotiff.c
+++ b/converter/other/pamtotiff.c
@@ -21,6 +21,7 @@
 ** other special, indirect and consequential damages.
 */
 
+#define _DEFAULT_SOURCE  /* New name for SVID & BSD source defines */
 #define _XOPEN_SOURCE    /* Make sure stdio.h contains fileno() */
 #define _BSD_SOURCE      /* Make sure string.h contains strcasecmp() */
 
diff --git a/converter/other/pamtouil.c b/converter/other/pamtouil.c
index ee7f5ae6..01858cbc 100644
--- a/converter/other/pamtouil.c
+++ b/converter/other/pamtouil.c
@@ -13,6 +13,7 @@
 ** implied warranty.
 */
 
+#define _DEFAULT_SOURCE /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE  /* Make sure string.h contains strdup() */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 #include <ctype.h>
diff --git a/converter/other/pgmtoppm.c b/converter/other/pgmtoppm.c
index f8a69424..c3a26594 100644
--- a/converter/other/pgmtoppm.c
+++ b/converter/other/pgmtoppm.c
@@ -10,6 +10,7 @@
 ** implied warranty.
 */
 
+#define _DEFAULT_SOURCE /* New name for SVID & BSD source defines */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 #define _BSD_SOURCE  /* Make sure strdup() is in <string.h> */
 #include <string.h>
diff --git a/converter/other/pnmtojpeg.c b/converter/other/pnmtojpeg.c
index ce231c94..86cb3eea 100644
--- a/converter/other/pnmtojpeg.c
+++ b/converter/other/pnmtojpeg.c
@@ -16,6 +16,7 @@
 
 *****************************************************************************/
 
+#define _DEFAULT_SOURCE 1  /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE 1      /* Make sure strdup() is in string.h */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 
diff --git a/converter/other/pnmtops.c b/converter/other/pnmtops.c
index c1dadc3e..c827f549 100644
--- a/converter/other/pnmtops.c
+++ b/converter/other/pnmtops.c
@@ -33,6 +33,7 @@
    goes in separate from the rest of the raster.
 */
 
+#define _DEFAULT_SOURCE /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE  /* Make sure string.h contains strdup() */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 #include <stdlib.h>
diff --git a/converter/other/pstopnm.c b/converter/other/pstopnm.c
index 016db2f6..e19a0fa4 100644
--- a/converter/other/pstopnm.c
+++ b/converter/other/pstopnm.c
@@ -14,6 +14,7 @@
 
 -----------------------------------------------------------------------------*/
 
+#define _DEFAULT_SOURCE 1 /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE 1   /* Make sure strdup() is in string.h */
 #define _XOPEN_SOURCE 500  
     /* Make sure fdopen() is in stdio.h and strdup() is in string.h */
diff --git a/converter/other/rletopnm.c b/converter/other/rletopnm.c
index ff37cfe4..018456c8 100644
--- a/converter/other/rletopnm.c
+++ b/converter/other/rletopnm.c
@@ -35,6 +35,7 @@
  *
  */
 
+#define _DEFAULT_SOURCE 1  /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE 1      /* Make sure strdup() is in string.h */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 
diff --git a/converter/other/svgtopam.c b/converter/other/svgtopam.c
index 137f4732..a10f51da 100644
--- a/converter/other/svgtopam.c
+++ b/converter/other/svgtopam.c
@@ -26,6 +26,7 @@
    
 ============================================================================*/
 
+#define _DEFAULT_SOURCE /* New name for SVID & BSD source defines */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 #define _BSD_SOURCE  /* Make sure strdup() is in <string.h> */
 #define _POSIX_SOURCE   /* Make sure fileno() is in <stdio.h> */
diff --git a/converter/other/tiff.c b/converter/other/tiff.c
index d0cbbd74..39e3b0ce 100644
--- a/converter/other/tiff.c
+++ b/converter/other/tiff.c
@@ -6,6 +6,7 @@
 
 ============================================================================*/
 
+#define _DEFAULT_SOURCE /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE    /* Make sure strcaseeq() is in nstring.h */
 
 #include <string.h>
diff --git a/converter/other/tifftopnm.c b/converter/other/tifftopnm.c
index 58efe1fd..fb0a7739 100644
--- a/converter/other/tifftopnm.c
+++ b/converter/other/tifftopnm.c
@@ -46,6 +46,7 @@
    give the user the -byrow option to order (2) only.
 */
 
+#define _DEFAULT_SOURCE 1  /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE 1      /* Make sure strdup() is in string.h */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 
diff --git a/converter/other/xwdtopnm.c b/converter/other/xwdtopnm.c
index d49a2b09..df3c7375 100644
--- a/converter/other/xwdtopnm.c
+++ b/converter/other/xwdtopnm.c
@@ -23,6 +23,7 @@
 */
 
 
+#define _DEFAULT_SOURCE 1  /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE 1      /* Make sure strdup() is in string.h */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 
diff --git a/converter/pbm/g3topbm.c b/converter/pbm/g3topbm.c
index b0d08f9e..83479b91 100644
--- a/converter/pbm/g3topbm.c
+++ b/converter/pbm/g3topbm.c
@@ -18,6 +18,7 @@
   contributing their work to the public domain.
 ===========================================================================*/
 
+#define _DEFAULT_SOURCE /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE   /* Make nstring.h define strcaseeq() */
 
 #include "pm_c_util.h"
diff --git a/converter/pbm/pbmtoascii.c b/converter/pbm/pbmtoascii.c
index fd590aa6..0305a47b 100644
--- a/converter/pbm/pbmtoascii.c
+++ b/converter/pbm/pbmtoascii.c
@@ -83,15 +83,15 @@ BSQ,D04, D04,D05, D04,'L', D05,'[', '<','Z', '/','Z', 'c','k',D06,'R',/*D0-DF*/
 
 
 static void
-makeRowOfSigs(FILE *         const ifP,
-              unsigned int   const cols,
-              unsigned int   const rows,
-              int            const format,
-              unsigned int   const cellWidth,
-              unsigned int   const cellHeight,
-              unsigned int   const row,
-              unsigned int * const sig,
-              unsigned int   const ccols) {
+makeRowOfSignatures(FILE *         const ifP,
+                    unsigned int   const cols,
+                    unsigned int   const rows,
+                    int            const format,
+                    unsigned int   const cellWidth,
+                    unsigned int   const cellHeight,
+                    unsigned int   const row,
+                    unsigned int * const sig,
+                    unsigned int   const ccols) {
 /*----------------------------------------------------------------------------
    Compute the signatures for every cell in a row.
 
@@ -183,23 +183,30 @@ pbmtoascii(FILE *       const ifP,
            unsigned int const cellHeight,
            const char * const carr) {
 
-    int cols, rows, format;
+    int format;
+    int cols, rows;
+        /* Dimensions of the input in pixels */
     unsigned int ccols;
+        /* Width of the output in characters */
     char * line;         /* malloc'ed array */
     unsigned int row;
-    unsigned int * sig;  /* malloc'ed array */
-        /* This describes in a single integer the pixels of a cell,
-           as described above.
+    unsigned int * signatureRow;  /* malloc'ed array */
+        /* This is the cell signatures of a row of cells.
+           signatureRow[0] is the signature for the first (leftmost) cell
+           in the row, signatureRow[1] is the signature for the next one,
+           etc.  A signature is an encoding of the pixels of a cell as
+           an integer, as described above.
         */
-    assert(cellWidth * cellHeight <= sizeof(sig[0]*8));
+    assert(cellWidth * cellHeight <= sizeof(signatureRow[0])*8);
 
     pbm_readpbminit(ifP, &cols, &rows, &format);
 
     ccols = (cols + cellWidth - 1) / cellWidth;
 
-    MALLOCARRAY(sig, ccols);
-    if (sig == NULL)
+    MALLOCARRAY(signatureRow, ccols);
+    if (signatureRow == NULL)
         pm_error("No memory for %u columns", ccols);
+
     MALLOCARRAY_NOFAIL(line, ccols+1);
     if (line == NULL)
         pm_error("No memory for %u columns", ccols);
@@ -207,16 +214,16 @@ pbmtoascii(FILE *       const ifP,
     for (row = 0; row < rows; row += cellHeight) {
         unsigned int endCol;
 
-        makeRowOfSigs(ifP, cols, rows, format, cellWidth, cellHeight,
-                      row, sig, ccols);
+        makeRowOfSignatures(ifP, cols, rows, format, cellWidth, cellHeight,
+                            row, signatureRow, ccols);
 
-        findRightMargin(sig, ccols, carr, &endCol);
+        findRightMargin(signatureRow, ccols, carr, &endCol);
 
-        assembleCellRow(sig, endCol, carr, line);
+        assembleCellRow(signatureRow, endCol, carr, line);
 
         puts(line);
     }
-    free(sig);
+    free(signatureRow);
     free(line);
 }
 
diff --git a/converter/pbm/pbmtoepson.c b/converter/pbm/pbmtoepson.c
index bb36791d..122a438f 100644
--- a/converter/pbm/pbmtoepson.c
+++ b/converter/pbm/pbmtoepson.c
@@ -11,6 +11,7 @@
 ** implied warranty.
 */
 
+#define _DEFAULT_SOURCE /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE    /* Make sure strcaseeq() is in nstring.h */
 #include <stdio.h>
 
diff --git a/converter/pbm/pbmtonokia.c b/converter/pbm/pbmtonokia.c
index e803e413..73b62b96 100644
--- a/converter/pbm/pbmtonokia.c
+++ b/converter/pbm/pbmtonokia.c
@@ -4,6 +4,7 @@
    Copyright information is at end of file.
 */
 
+#define _DEFAULT_SOURCE /* New name for SVID & BSD source defines */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 #define _BSD_SOURCE    /* Make sure strcaseeq() is in nstring.h */
 #include <string.h>
diff --git a/converter/pbm/pbmtopk.c b/converter/pbm/pbmtopk.c
index 3948ae0d..2f05d449 100644
--- a/converter/pbm/pbmtopk.c
+++ b/converter/pbm/pbmtopk.c
@@ -9,6 +9,7 @@
   https://www.tug.org/TUGboat/tb06-1/tb11gf.pdf
 */
 
+#define _DEFAULT_SOURCE 1  /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE 1      /* Make sure strdup() is in string.h */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 
diff --git a/converter/pbm/pbmtoppa/pbmtoppa.c b/converter/pbm/pbmtoppa/pbmtoppa.c
index f43c08a8..ff4a599e 100644
--- a/converter/pbm/pbmtoppa/pbmtoppa.c
+++ b/converter/pbm/pbmtoppa/pbmtoppa.c
@@ -4,6 +4,7 @@
  * 2-24-98
  */
 
+#define _DEFAULT_SOURCE /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE
     /* This makes sure strcasecmp() is in string.h */
 #include <stdio.h>
diff --git a/converter/pbm/pbmtoxbm.c b/converter/pbm/pbmtoxbm.c
index 14c6b85e..ecb72b30 100644
--- a/converter/pbm/pbmtoxbm.c
+++ b/converter/pbm/pbmtoxbm.c
@@ -20,6 +20,7 @@
 
 */
 
+#define _DEFAULT_SOURCE 1  /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE 1      /* Make sure strdup() is in string.h */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 
diff --git a/converter/ppm/ppmtobmp.c b/converter/ppm/ppmtobmp.c
index 6bdec8c3..a0de38e3 100644
--- a/converter/ppm/ppmtobmp.c
+++ b/converter/ppm/ppmtobmp.c
@@ -13,6 +13,7 @@
  *
  */
 
+#define _DEFAULT_SOURCE 1 /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE 1    /* Make sure strdup() is in string.h */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 
diff --git a/converter/ppm/ppmtogif.c b/converter/ppm/ppmtogif.c
index fa7d1dbe..8dd133b5 100644
--- a/converter/ppm/ppmtogif.c
+++ b/converter/ppm/ppmtogif.c
@@ -10,6 +10,7 @@
      - Pamtogif requires a user-specififed map file (-mapfile) to
        match the input in depth.
 */
+#define _DEFAULT_SOURCE /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE   /* Make sure strdup() is in string.h */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 
diff --git a/converter/ppm/ppmtompeg/gethostname.c b/converter/ppm/ppmtompeg/gethostname.c
index d20af17c..649fff91 100644
--- a/converter/ppm/ppmtompeg/gethostname.c
+++ b/converter/ppm/ppmtompeg/gethostname.c
@@ -1,3 +1,4 @@
+#define _DEFAULT_SOURCE /* New name for SVID & BSD source defines */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 #define _BSD_SOURCE   /* Make sure strdup() is in string.h */
 
diff --git a/converter/ppm/ppmtompeg/mpeg.c b/converter/ppm/ppmtompeg/mpeg.c
index 24d337ed..33e1a9f9 100644
--- a/converter/ppm/ppmtompeg/mpeg.c
+++ b/converter/ppm/ppmtompeg/mpeg.c
@@ -30,6 +30,7 @@
  * HEADER FILES *
  *==============*/
 
+#define _DEFAULT_SOURCE /* New name for SVID & BSD source defines */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 #define _BSD_SOURCE   /* Make sure strdup() is in string.h */
 
diff --git a/converter/ppm/ppmtompeg/param.c b/converter/ppm/ppmtompeg/param.c
index 45605981..87fdfa6b 100644
--- a/converter/ppm/ppmtompeg/param.c
+++ b/converter/ppm/ppmtompeg/param.c
@@ -7,6 +7,8 @@
 
 /* COPYRIGHT INFORMATION IS AT THE END OF THIS FILE */
 
+#define _DEFAULT_SOURCE 1
+    /* New name for SVID & BSD source defines */
 #define _XOPEN_SOURCE 500
     /* This makes sure popen() is in stdio.h.  In GNU libc 2.1.3, 
      _POSIX_C_SOURCE = 2 is sufficient, but on AIX 4.3, the higher level
diff --git a/converter/ppm/ppmtompeg/ppmtompeg.c b/converter/ppm/ppmtompeg/ppmtompeg.c
index 46224e84..837b1b9d 100644
--- a/converter/ppm/ppmtompeg/ppmtompeg.c
+++ b/converter/ppm/ppmtompeg/ppmtompeg.c
@@ -30,6 +30,7 @@
  * HEADER FILES *
  *==============*/
 
+#define _DEFAULT_SOURCE /* New name for SVID & BSD source defines */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 #define _BSD_SOURCE   /* Make sure strdup() is in string.h */
 
diff --git a/converter/ppm/ppmtompeg/readframe.c b/converter/ppm/ppmtompeg/readframe.c
index 23752706..2a359b2f 100644
--- a/converter/ppm/ppmtompeg/readframe.c
+++ b/converter/ppm/ppmtompeg/readframe.c
@@ -17,6 +17,7 @@
  * HEADER FILES *
  *==============*/
 
+#define _DEFAULT_SOURCE /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE   /* Make sure popen() is in stdio.h */
 #include "all.h"
 #include <time.h>
diff --git a/converter/ppm/ppmtoxpm.c b/converter/ppm/ppmtoxpm.c
index 38d99972..0e316928 100644
--- a/converter/ppm/ppmtoxpm.c
+++ b/converter/ppm/ppmtoxpm.c
@@ -33,6 +33,7 @@
 **    (base 93 not base 28 -> saves a lot of space for colorful xpms)
 */
 
+#define _DEFAULT_SOURCE /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE   /* Make sure strdup() is in string.h */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 
diff --git a/converter/ppm/tgatoppm.c b/converter/ppm/tgatoppm.c
index 95893089..3660e646 100644
--- a/converter/ppm/tgatoppm.c
+++ b/converter/ppm/tgatoppm.c
@@ -12,6 +12,7 @@
 ** implied warranty.
 */
 
+#define _DEFAULT_SOURCE 1  /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE 1      /* Make sure strdup() is in string.h */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 
diff --git a/converter/ppm/winicontoppm.c b/converter/ppm/winicontoppm.c
index 6b1376b2..2c9015f5 100644
--- a/converter/ppm/winicontoppm.c
+++ b/converter/ppm/winicontoppm.c
@@ -14,6 +14,7 @@
 ** 03/2003 - Added 24+32 bpp capability.
 */
 
+#define _DEFAULT_SOURCE 1  /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE 1      /* Make sure strdup() is in string.h */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 
diff --git a/converter/ppm/ximtoppm.c b/converter/ppm/ximtoppm.c
index ce5e6396..75faac69 100644
--- a/converter/ppm/ximtoppm.c
+++ b/converter/ppm/ximtoppm.c
@@ -10,6 +10,7 @@
 ** implied warranty.
 */
 
+#define _DEFAULT_SOURCE 1  /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE 1      /* Make sure strdup() is in string.h */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */
 
diff --git a/converter/ppm/xpmtoppm.c b/converter/ppm/xpmtoppm.c
index 27f17931..9471ec7c 100644
--- a/converter/ppm/xpmtoppm.c
+++ b/converter/ppm/xpmtoppm.c
@@ -3,6 +3,7 @@
    Copyright and history information is at end of file
 */
 
+#define _DEFAULT_SOURCE /* New name for SVID & BSD source defines */
 #define _BSD_SOURCE   /* Make sure strdup() is in string.h */
 #define _XOPEN_SOURCE 500  /* Make sure strdup() is in string.h */