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authorMarcel Raad <Marcel.Raad@teamviewer.com>2018-07-09 18:38:23 +0200
committerMarcel Raad <Marcel.Raad@teamviewer.com>2018-08-21 18:53:44 +0200
commitd5c0351055d5709da8f3e16c91348092fdb481aa (patch)
tree1e8d54641e57622998b49c3972a6191bc420b42d /configure.ac
parenta829c4b25e2197d60afacefe3c868a974c3cd125 (diff)
downloadcurl-d5c0351055d5709da8f3e16c91348092fdb481aa.tar.gz
configure: conditionally enable pedantic-errors
Enable pedantic-errors for GCC >= 5 with --enable-werror. Before GCC 5, pedantic-errors was synonymous to -Werror=pedantic [0], which is still the case for clang [1]. With GCC 5, it became complementary [2]. Also fix a resulting error in acinclude.m4 as main's return type was missing, which is illegal in C99. [0] https://gcc.gnu.org/onlinedocs/gcc-4.9.0/gcc/Warning-Options.html [1] https://clang.llvm.org/docs/UsersManual.html#options-to-control-error-and-warning-messages [2] https://gcc.gnu.org/onlinedocs/gcc-5.1.0/gcc/Warning-Options.html Closes https://github.com/curl/curl/pull/2747
Diffstat (limited to 'configure.ac')
-rwxr-xr-xconfigure.ac7
1 files changed, 7 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 18b7ae0f1..ff8f5df9b 100755
--- a/configure.ac
+++ b/configure.ac
@@ -61,6 +61,13 @@ AC_SUBST(CONFIGURE_OPTIONS)
CURL_CFLAG_EXTRAS=""
if test X"$want_werror" = Xyes; then
CURL_CFLAG_EXTRAS="-Werror"
+ if test "$compiler_id" = "GNU_C"; then
+ dnl enable -pedantic-errors for GCC 5 and later,
+ dnl as before that it was the same as -Werror=pedantic
+ if test "$compiler_num" -ge "500"; then
+ CURL_CFLAG_EXTRAS="$CURL_CFLAG_EXTRAS -pedantic-errors"
+ fi
+ fi
fi
AC_SUBST(CURL_CFLAG_EXTRAS)