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-rw-r--r--config/c-compiler.m418
1 files changed, 17 insertions, 1 deletions
diff --git a/config/c-compiler.m4 b/config/c-compiler.m4
index cc25cf94ba0..2e3fba877a3 100644
--- a/config/c-compiler.m4
+++ b/config/c-compiler.m4
@@ -1,5 +1,5 @@
# Macros to detect C compiler features
-# $PostgreSQL: pgsql/config/c-compiler.m4,v 1.16 2008/04/18 18:43:08 alvherre Exp $
+# $PostgreSQL: pgsql/config/c-compiler.m4,v 1.17 2008/05/18 20:13:12 tgl Exp $
# PGAC_C_SIGNED
@@ -110,3 +110,19 @@ _AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
[CFLAGS="$pgac_save_CFLAGS"
AC_MSG_RESULT(no)])
])# PGAC_PROG_CC_CFLAGS_OPT
+
+
+
+# PGAC_PROG_CC_LDFLAGS_OPT
+# ------------------------
+# Given a string, check if the compiler supports the string as a
+# command-line option. If it does, add the string to LDFLAGS.
+AC_DEFUN([PGAC_PROG_CC_LDFLAGS_OPT],
+[AC_MSG_CHECKING([if $CC supports $1])
+pgac_save_LDFLAGS=$LDFLAGS
+LDFLAGS="$pgac_save_LDFLAGS $1"
+AC_LINK_IFELSE([AC_LANG_PROGRAM()],
+ AC_MSG_RESULT(yes),
+ [LDFLAGS="$pgac_save_LDFLAGS"
+ AC_MSG_RESULT(no)])
+])# PGAC_PROG_CC_LDFLAGS_OPT