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auto-add CXXFLAG -Wno-c++11-narrowing if possible

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This commit is contained in:
Stefan Siegl 2015-07-25 21:36:34 +02:00
parent cdcfb973a7
commit b30ee1e09b
1 changed files with 11 additions and 1 deletions
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12
config.m4
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@ -46,6 +46,16 @@ if test "$PHP_V8JS" != "no"; then
CPPFLAGS=$old_CPPFLAGS
]);
AC_CACHE_CHECK(how to disable c++11 narrowing warning, ac_cv_v8_narrowing, [
ac_cv_v8_narrowing=""
old_CXXFLAGS=$CXXFLAGS
AC_LANG_PUSH([C++])
CXXFLAGS="-Wno-c++11-narrowing"
AC_TRY_RUN([int main() { unsigned int a[1] = { -1 }; (void) a; return 0; }],[ac_cv_v8_narrowing="-Wno-c++11-narrowing"],[],[])
AC_LANG_POP([C++])
CXXFLAGS=$old_CXXFLAGS
]);
old_LIBS=$LIBS
old_LDFLAGS=$LDFLAGS
@ -164,7 +174,7 @@ AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <v8-debug.h>]],
v8js_v8.cc \
v8js_v8object_class.cc \
v8js_variables.cc \
], $ext_shared, , "-std="$ac_cv_v8_cstd)
], $ext_shared, , "$ac_cv_v8_narrowing -std="$ac_cv_v8_cstd)
PHP_ADD_MAKEFILE_FRAGMENT
fi