More merges: 14973,14976, and some whitespace.

1 files changed, 132 insertions, 41 deletions

diff --git a/aczsh.m4 b/aczsh.m4
index 9ebb275c6..4ac1f6f2e 100644
--- a/aczsh.m4
+++ b/aczsh.m4
@@ -84,6 +84,7 @@ dnl   specified directly as --enable-lfs="long long".
 dnl   Sets the variable given in the second argument to the first argument
 dnl   if the test worked, `no' otherwise.  Be careful testing this, as it
 dnl   may produce two words `long long' on an unquoted substitution.
+dnl   Also check that the compiler does not mind it being cast to int.
 dnl   This macro does not produce messages as it may be run several times
 dnl   before finding the right type.
 dnl
@@ -97,6 +98,7 @@ AC_DEFUN(zsh_64_BIT_TYPE,
 main()
 {
   $1 foo = 0; 
+  int bar = (int) foo;
   return sizeof($1) != 8;
 }
 ], $2="$1", $2=no,
@@ -109,36 +111,63 @@ main()
 
 
 dnl
-dnl zsh_SYS_DYNAMIC_BROKEN
-dnl   Check whether static/shared library linking is broken.
+dnl zsh_SHARED_FUNCTION
+dnl
+dnl This is just a frontend to zsh_SHARED_SYMBOL
+dnl
+dnl Usage: zsh_SHARED_FUNCTION(name[,rettype[,paramtype]])
+dnl
+
+AC_DEFUN(zsh_SHARED_FUNCTION,
+[zsh_SHARED_SYMBOL($1, ifelse([$2], ,[int ],[$2]) $1 [(]ifelse([$3], ,[ ],[$3])[)], $1)])
+
+dnl
+dnl zsh_SHARED_VARIABLE
+dnl
+dnl This is just a frontend to zsh_SHARED_SYMBOL
+dnl
+dnl Usage: zsh_SHARED_VARIABLE(name[,type])
+dnl
+
+AC_DEFUN(zsh_SHARED_VARIABLE,
+[zsh_SHARED_SYMBOL($1, ifelse([$2], ,[int ],[$2]) $1, [&$1])])
+
+dnl
+dnl zsh_SHARED_SYMBOL
+dnl   Check whether symbol is available in static or shared library
 dnl
 dnl   On some systems, static modifiable library symbols (such as environ)
 dnl   may appear only in statically linked libraries.  If this is the case,
 dnl   then two shared libraries that reference the same symbol, each linked
 dnl   with the static library, could be given distinct copies of the symbol.
-dnl   If this is the case then dynamic linking is FUBAR.
+dnl
+dnl Usage: zsh_SHARED_SYMBOL(name,declaration,address)
+dnl Sets zsh_cv_shared_$1 cache variable to yes/no
 dnl
 
-AC_DEFUN(zsh_SYS_DYNAMIC_BROKEN,
-[AC_CACHE_CHECK([if static/shared library linking is broken],
-zsh_cv_sys_dynamic_broken,
+AC_DEFUN(zsh_SHARED_SYMBOL,
+[AC_CACHE_CHECK([if $1 is available in shared libraries],
+zsh_cv_shared_$1,
 [if test "$zsh_cv_func_dlsym_needs_underscore" = yes; then
     us=_
 else
     us=
 fi
 echo '
-	extern char **environ;
-	void *symlist1[[]] = {
-		(void *)&environ,
-		(void *)0
-	};
+void *zsh_getaddr1()
+{
+#ifdef __CYGWIN__
+	__attribute__((__dllimport__))	
+#endif
+	extern $2;
+	return $3;
+};
 ' > conftest1.c
-sed 's/symlist1/symlist2/' < conftest1.c > conftest2.c
-if $CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest1.c 1>&5 2>&5 &&
-$DLLD -o conftest1.$DL_EXT $LDFLAGS $DLLDFLAGS conftest1.o $LIBS 1>&5 2>&5 &&
-$CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest2.c 1>&5 2>&5 &&
-$DLLD -o conftest2.$DL_EXT $LDFLAGS $DLLDFLAGS conftest2.o $LIBS 1>&5 2>&5; then
+sed 's/zsh_getaddr1/zsh_getaddr2/' < conftest1.c > conftest2.c
+if AC_TRY_COMMAND($CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest1.c 1>&AC_FD_CC) &&
+AC_TRY_COMMAND($DLLD -o conftest1.$DL_EXT $LDFLAGS $DLLDFLAGS conftest1.o $LIBS 1>&AC_FD_CC) &&
+AC_TRY_COMMAND($CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest2.c 1>&AC_FD_CC) &&
+AC_TRY_COMMAND($DLLD -o conftest2.$DL_EXT $LDFLAGS $DLLDFLAGS conftest2.o $LIBS 1>&AC_FD_CC); then
     AC_TRY_RUN([
 #ifdef HPUXDYNAMIC
 #include <dl.h>
@@ -170,25 +199,33 @@ char *zsh_gl_sym_addr ;
 main()
 {
     void *handle1, *handle2;
-    void **symlist1, **symlist2;
+    void *(*zsh_getaddr1)(), *(*zsh_getaddr2)();
+    void *sym1, *sym2;
     handle1 = dlopen("./conftest1.$DL_EXT", RTLD_LAZY | RTLD_GLOBAL);
     if(!handle1) exit(1);
     handle2 = dlopen("./conftest2.$DL_EXT", RTLD_LAZY | RTLD_GLOBAL);
     if(!handle2) exit(1);
-    symlist1 = (void **) dlsym(handle1, "${us}symlist1");
-    symlist2 = (void **) dlsym(handle2, "${us}symlist2");
-    if(!symlist1 || !symlist2) exit(1);
-    for(; *symlist1; symlist1++, symlist2++)
-	if(*symlist1 != *symlist2)
-	    exit(1);
+    zsh_getaddr1 = (void *(*)()) dlsym(handle1, "${us}zsh_getaddr1");
+    zsh_getaddr2 = (void *(*)()) dlsym(handle2, "${us}zsh_getaddr2");
+    sym1 = zsh_getaddr1();
+    sym2 = zsh_getaddr2();
+    if(!sym1 || !sym2) exit(1);
+    if(sym1 != sym2) exit(1);
+    dlclose(handle1);
+    handle1 = dlopen("./conftest1.$DL_EXT", RTLD_LAZY | RTLD_GLOBAL);
+    if(!handle1) exit(1);
+    zsh_getaddr1 = (void *(*)()) dlsym(handle1, "${us}zsh_getaddr1");
+    sym1 = zsh_getaddr1();
+    if(!sym1) exit(1);
+    if(sym1 != sym2) exit(1);
     exit(0);
 }
-], [zsh_cv_sys_dynamic_broken=no],
-[zsh_cv_sys_dynamic_broken=yes],
-[zsh_cv_sys_dynamic_broken=yes]
+], [zsh_cv_shared_$1=yes],
+[zsh_cv_shared_$1=no],
+[zsh_cv_shared_$1=no]
 )
 else
-    zsh_cv_sys_dynamic_broken=yes
+    zsh_cv_shared_$1=no
 fi
 ])
 ])
@@ -208,10 +245,10 @@ else
 fi
 echo 'int fred () { return 42; }' > conftest1.c
 echo 'int fred () { return 69; }' > conftest2.c
-if $CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest1.c 1>&5 2>&5 &&
-$DLLD -o conftest1.$DL_EXT $LDFLAGS $DLLDFLAGS conftest1.o $LIBS 1>&5 2>&5 &&
-$CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest2.c 1>&5 2>&5 &&
-$DLLD -o conftest2.$DL_EXT $LDFLAGS $DLLDFLAGS conftest2.o $LIBS 1>&5 2>&5; then
+if AC_TRY_COMMAND($CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest1.c 1>&AC_FD_CC) &&
+AC_TRY_COMMAND($DLLD -o conftest1.$DL_EXT $LDFLAGS $DLLDFLAGS conftest1.o $LIBS 1>&AC_FD_CC) &&
+AC_TRY_COMMAND($CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest2.c 1>&AC_FD_CC) &&
+AC_TRY_COMMAND($DLLD -o conftest2.$DL_EXT $LDFLAGS $DLLDFLAGS conftest2.o $LIBS 1>&AC_FD_CC); then
     AC_TRY_RUN([
 #ifdef HPUXDYNAMIC
 #include <dl.h>
@@ -283,10 +320,10 @@ else
 fi
 echo 'int fred () { return 42; }' > conftest1.c
 echo 'extern int fred(); int barney () { return fred() + 27; }' > conftest2.c
-if $CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest1.c 1>&5 2>&5 &&
-$DLLD -o conftest1.$DL_EXT $LDFLAGS $DLLDFLAGS conftest1.o $LIBS 1>&5 2>&5 &&
-$CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest2.c 1>&5 2>&5 &&
-$DLLD -o conftest2.$DL_EXT $LDFLAGS $DLLDFLAGS conftest2.o $LIBS 1>&5 2>&5; then
+if AC_TRY_COMMAND($CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest1.c 1>&AC_FD_CC) &&
+AC_TRY_COMMAND($DLLD -o conftest1.$DL_EXT $LDFLAGS $DLLDFLAGS conftest1.o $LIBS 1>&AC_FD_CC) &&
+AC_TRY_COMMAND($CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest2.c 1>&AC_FD_CC) &&
+AC_TRY_COMMAND($DLLD -o conftest2.$DL_EXT $LDFLAGS $DLLDFLAGS conftest2.o $LIBS 1>&AC_FD_CC); then
     AC_TRY_RUN([
 #ifdef HPUXDYNAMIC
 #include <dl.h>
@@ -353,8 +390,8 @@ else
     us=
 fi
 echo 'extern int fred(); int barney () { return fred() + 27; }' > conftest1.c
-if $CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest1.c 1>&5 2>&5 &&
-$DLLD -o conftest1.$DL_EXT $LDFLAGS $DLLDFLAGS conftest1.o $LIBS 1>&5 2>&5; then
+if AC_TRY_COMMAND($CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest1.c 1>&AC_FD_CC) &&
+AC_TRY_COMMAND($DLLD -o conftest1.$DL_EXT $LDFLAGS $DLLDFLAGS conftest1.o $LIBS 1>&AC_FD_CC); then
     save_ldflags=$LDFLAGS
     LDFLAGS="$LDFLAGS $EXTRA_LDFLAGS"
     AC_TRY_RUN([
@@ -426,8 +463,8 @@ elif
 	us=
     fi
     echo 'extern int fred(); int barney() { return fred() + 27; }' > conftest1.c
-    $CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest1.c 1>&5 2>&5 &&
-    $DLLD -o conftest1.$DL_EXT $LDFLAGS $DLLDFLAGS conftest1.o $LIBS 1>&5 2>&5; then
+    AC_TRY_COMMAND($CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest1.c 1>&AC_FD_CC) &&
+    AC_TRY_COMMAND($DLLD -o conftest1.$DL_EXT $LDFLAGS $DLLDFLAGS conftest1.o $LIBS 1>&AC_FD_CC); then
     save_ldflags=$LDFLAGS
     LDFLAGS="$LDFLAGS $EXTRA_LDFLAGS -s"
     AC_TRY_RUN([
@@ -495,8 +532,8 @@ else
     us=
 fi
 echo 'int fred () { return 42; }' > conftest1.c
-if $CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest1.c 1>&5 2>&5 &&
-$DLLD -o conftest1.$DL_EXT $LDFLAGS $DLLDFLAGS -s conftest1.o $LIBS 1>&5 2>&5; then
+if AC_TRY_COMMAND($CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest1.c 1>&AC_FD_CC) &&
+AC_TRY_COMMAND($DLLD -o conftest1.$DL_EXT $LDFLAGS $DLLDFLAGS -s conftest1.o $LIBS 1>&AC_FD_CC); then
     AC_TRY_RUN([
 #ifdef HPUXDYNAMIC
 #include <dl.h>
@@ -620,3 +657,57 @@ tzsh=`echo ${tzsh_name} | sed -f conftestsed`
 rm -f conftestsed
 AC_SUBST(tzsh)dnl
 ])
+
+AC_DEFUN(zsh_COMPILE_FLAGS,
+    [AC_ARG_ENABLE(cppflags,
+	[  --enable-cppflags=...      specify C preprocessor flags],
+	if test "$enableval" = "yes"
+	then CPPFLAGS="$1"
+	else CPPFLAGS="$enable_cppflags"
+	fi)
+    AC_ARG_ENABLE(cflags,
+	[  --enable-cflags=...        specify C compiler flags],
+	if test "$enableval" = "yes"
+	then CFLAGS="$2"
+	else CFLAGS="$enable_cflags"
+	fi)
+    AC_ARG_ENABLE(ldflags,
+	[  --enable-ldflags=...       specify linker flags],
+	if test "$enableval" = "yes"
+	then LDFLAGS="$3"
+	else LDFLAGS="$enable_ldflags"
+	fi)
+    AC_ARG_ENABLE(libs,
+	[  --enable-libs=...          specify link libraries],
+	if test "$enableval" = "yes"
+	then LIBS="$4"
+	else LIBS="$enable_libs"
+	fi)])
+
+dnl 
+dnl zsh_CHECK_SOCKLEN_T
+dnl
+dnl	check type of third argument of some network functions; currently
+dnl	tested are size_t *, unsigned long *, int *.
+dnl
+AC_DEFUN([zsh_CHECK_SOCKLEN_T],[
+  AC_CACHE_CHECK(
+    [base type of the third argument to accept],
+    [zsh_cv_type_socklen_t],
+    [zsh_cv_type_socklen_t=
+    for zsh_type in socklen_t int "unsigned long" size_t ; do
+      AC_TRY_COMPILE(
+        [#include <sys/types.h>
+         #include <sys/socket.h>],
+        [extern int accept (int, struct sockaddr *, $zsh_type *);],
+        [zsh_cv_type_socklen_t="$zsh_type"; break],
+        []
+      )
+    done
+    if test -z "$zsh_cv_type_socklen_t"; then
+      zsh_cv_type_socklen_t=int
+    fi]
+  )
+  AC_DEFINE_UNQUOTED([SOCKLEN_T], [$zsh_cv_type_socklen_t])]
+)
+