On some platforms the -std=c99 gcc option hides certain functions from system
header files because the option turns on the __STRICT_ANSI__ preprocessor flag.
Unset the flag globally if doing so makes these system functions visible.
---
configure | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/configure b/configure
index efdd647..5d97a64 100755
--- a/configure
+++ b/configure
@@ -2326,6 +2326,9 @@ fi
add_cppflags -D_ISOC99_SOURCE
check_cflags -std=c99
+if ! check_func atoll; then
+ check_func atoll -U__STRICT_ANSI__ && add_cppflags -U__STRICT_ANSI__
+fi
check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
#include <stdlib.h>
EOF
@@ -2445,7 +2448,6 @@ case $target_os in
check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) ||
(__MINGW32_MAJOR_VERSION > 3) \
|| (__MINGW32_MAJOR_VERSION == 3 &&
__MINGW32_MINOR_VERSION >= 15)" ||
die "ERROR: MinGW runtime version must be >= 3.15."
- add_cppflags -U__STRICT_ANSI__
;;
cygwin*)
target_os=cygwin
--
1.7.5.1
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