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authorDiego 'Flameeyes' Pettenò <flameeyes@gmail.com>2008-08-08 13:04:27 +0200
committerDiego 'Flameeyes' Pettenò <flameeyes@gmail.com>2008-08-08 15:09:32 +0200
commita6e4507a4b9f48379e69748e7c4a0374dd11b13d (patch)
treec91657ac1a1fc8a8883386a76c49c60114e0c881
parentf46ae106a54f1f84651b45561f6fa01a825e8b30 (diff)
Use AC_PROG_CC_C99 to discover C99-compliant compiler.
Instead of just checking if the compiler supports -std=c99 option, make use of the autoconf macro for discovering C99. This way other non-GCC compiler could be used in C99 mode too.
-rw-r--r--configure.ac6
1 files changed, 2 insertions, 4 deletions
diff --git a/configure.ac b/configure.ac
index 4fa171f3..a7fbd1a1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -86,6 +86,7 @@ AC_PROG_MKDIR_P
# CC
AC_PROG_CC
+AC_PROG_CC_C99
AM_PROG_CC_C_O
AC_PROG_GCC_TRADITIONAL
AC_GNU_SOURCE
@@ -109,10 +110,7 @@ test_gcc_flag() {
# If using GCC specify some additional parameters
if test "x$GCC" = "xyes" ; then
-
- # We use gnu99 instead of c99 because many have interpreted the standard
- # in a way that int64_t isn't defined on non-64 bit platforms.
- DESIRED_FLAGS="-std=gnu99 -Wall -W -Wextra -pedantic -pipe -Wformat -Wold-style-definition -Wdeclaration-after-statement -Wfloat-equal -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wredundant-decls -Wmissing-noreturn -Wshadow -Wendif-labels -Wpointer-arith -Wcast-align -Wwrite-strings -Winline -Wno-unused-parameter -ffast-math"
+ DESIRED_FLAGS="-Wall -W -Wextra -pedantic -pipe -Wformat -Wold-style-definition -Wdeclaration-after-statement -Wfloat-equal -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wredundant-decls -Wmissing-noreturn -Wshadow -Wendif-labels -Wpointer-arith -Wcast-align -Wwrite-strings -Winline -Wno-unused-parameter -ffast-math"
for flag in $DESIRED_FLAGS ; do
AC_MSG_CHECKING([whether $CC accepts $flag])