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authorMike Frysinger <vapier@gentoo.org>2013-10-30 13:20:52 +1000
committerAllan McRae <allan@archlinux.org>2013-10-30 17:32:08 +1000
commitcb8a6dbd176ee59d61068bed92e2c8d22bd28b13 (patch)
tree9ead2c7bd7a279a0669afe49476dd1da4b3c8da9 /sysdeps/unix/sysv/linux/powerpc/configure.ac
parent36a4953a1dbc2b1994c1df0478c1c89a41398dba (diff)
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rename configure.in to configure.ac
Autoconf has been deprecating configure.in for quite a long time.
Rename all our configure.in and preconfigure.in files to .ac.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'sysdeps/unix/sysv/linux/powerpc/configure.ac')
-rw-r--r--sysdeps/unix/sysv/linux/powerpc/configure.ac37
1 files changed, 37 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/powerpc/configure.ac b/sysdeps/unix/sysv/linux/powerpc/configure.ac
new file mode 100644
index 0000000000..1768ab1f99
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/configure.ac
@@ -0,0 +1,37 @@
+sinclude(./aclocal.m4)dnl Autoconf lossage
+GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
+# Local configure fragment for sysdeps/unix/sysv/linux/powerpc/.
+
+AC_CACHE_CHECK(whether $CC $CFLAGS -mlong-double-128 uses IBM extended format,
+	       libc_cv_mlong_double_128ibm, [dnl
+save_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -mlong-double-128"
+AC_TRY_COMPILE([#include <float.h>], [
+#if LDBL_MANT_DIG != 106
+# error "compiler doesn't implement IBM extended format of long double"
+#endif
+long double foobar (long double x) { return x; }],
+	       libc_cv_mlong_double_128ibm=yes,
+	       libc_cv_mlong_double_128ibm=no)
+CFLAGS="$save_CFLAGS"])
+
+if test "$libc_cv_mlong_double_128ibm" = no; then
+  AC_CACHE_CHECK(whether $CC $CFLAGS supports -mabi=ibmlongdouble,
+		 libc_cv_mabi_ibmlongdouble, [dnl
+  save_CFLAGS="$CFLAGS"
+  CFLAGS="$CFLAGS -mlong-double-128 -mabi=ibmlongdouble"
+  AC_TRY_COMPILE([#include <float.h>], [
+#if LDBL_MANT_DIG != 106
+# error "compiler doesn't implement IBM extended format of long double"
+#endif
+long double foobar (long double x) { return x; }],
+		 libc_cv_mabi_ibmlongdouble=yes,
+		 libc_cv_mabi_ibmlongdouble=no)
+  CFLAGS="$save_CFLAGS"])
+
+  if test "$libc_cv_mabi_ibmlongdouble" = yes; then
+    CFLAGS="$CFLAGS -mabi=ibmlongdouble"
+  else
+    AC_MSG_ERROR([this configuration requires -mlong-double-128 IBM extended format support])
+  fi
+fi