grep branch, master, updated. v2.25-104-g079e942

[Paul Eggert]

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http://git.savannah.gnu.org/cgit/grep.git/commit/?id=079e942a0edb6122c411f9dd5ed0e98cdd4fa420


commit 079e942a0edb6122c411f9dd5ed0e98cdd4fa420
Author: Paul Eggert <address@hidden>
Date:   Tue Sep 27 11:14:35 2016 -0700

    build: port .git builds to newer GCC
    
    * configure.ac (gl_gcc_warnings): Omit duplicate copy of 'main'.
    Problem reported by Assaf Gordon in:
    http://lists.gnu.org/archive/html/grep-devel/2016-09/msg00024.html

diff --git a/configure.ac b/configure.ac
index 202e30b..cbd1ff6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -113,9 +113,7 @@ AC_ARG_ENABLE([gcc-warnings],
    if test "$GCC" = yes && test -d "$srcdir"/.git; then
      AC_COMPILE_IFELSE(
        [AC_LANG_PROGRAM([[
-          #if 6 < __GNUC__ + (2 <= __GNUC_MINOR__)
-            int main (void) { return 0; }
-          #else
+          #if ! (6 < __GNUC__ + (2 <= __GNUC_MINOR__))
             #error "This GCC is too old."
           #endif
           ]])],

-----------------------------------------------------------------------

Summary of changes:
 configure.ac |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)


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