diff options
Diffstat (limited to 'libs/cairo-1.16.0/build/configure.ac.warnings')
| -rw-r--r-- | libs/cairo-1.16.0/build/configure.ac.warnings | 99 |
1 files changed, 0 insertions, 99 deletions
diff --git a/libs/cairo-1.16.0/build/configure.ac.warnings b/libs/cairo-1.16.0/build/configure.ac.warnings deleted file mode 100644 index 96c7f6f..0000000 --- a/libs/cairo-1.16.0/build/configure.ac.warnings +++ /dev/null @@ -1,99 +0,0 @@ -dnl Use lots of warning flags with with gcc and compatible compilers - -dnl Note: if you change the following variable, the cache is automatically -dnl skipped and all flags rechecked. So there's no need to do anything -dnl else. If for any reason you need to force a recheck, just change -dnl MAYBE_WARN in an ignorable way (like adding whitespace) - -# -Wcast-align generates lots of false positive reports we need to -# cast image data from uint8_t to uin32_t. - -# -Wlogical-op causes too much noise from strcmp("literal", str) - -MAYBE_WARN="-Wall -Wextra \ --Wmissing-declarations -Werror-implicit-function-declaration \ --Wpointer-arith -Wwrite-strings -Wsign-compare -Wpacked \ --Wswitch-enum -Wmissing-format-attribute -Wvolatile-register-var \ --Wstrict-aliasing=2 -Winit-self -Wunsafe-loop-optimizations \ --Wno-missing-field-initializers -Wno-unused-parameter \ --Wno-attributes -Wno-long-long -Winline" - -MAYBE_C_SPECIFIC_WARN="-Wold-style-definition \ --Wdeclaration-after-statement -Wstrict-prototypes \ --Wmissing-prototypes -Wbad-function-cast -Wnested-externs" - -# New -Wno options should be added here -# gcc-4.4 and later accept every -Wno- option but may complain later that this -# option is unknow each time another warning happen. -# -Wunused-but-set-variable is too noisy at present -NO_WARN="unused-but-set-variable" - -dnl Sun Studio 12 likes to rag at us for abusing enums like -dnl having cairo_status_t variables hold cairo_int_status_t -dnl values. It's bad, we know. Now please be quiet. -MAYBE_WARN="$MAYBE_WARN -erroff=E_ENUM_TYPE_MISMATCH_ARG \ - -erroff=E_ENUM_TYPE_MISMATCH_OP" - -dnl We also abuse the warning-flag facility to enable other compiler -dnl options. Namely, the following: -MAYBE_WARN="$MAYBE_WARN -fno-strict-aliasing -fno-common" - -dnl Also to turn various gcc/glibc-specific preprocessor checks -MAYBE_WARN="$MAYBE_WARN -Wp,-D_FORTIFY_SOURCE=2" - -# invalidate cached value if MAYBE_WARN has changed -if test "x$cairo_cv_warn_maybe" != "x$MAYBE_WARN"; then - unset cairo_cv_warn_cflags -fi -AC_CACHE_CHECK([for supported warning flags], cairo_cv_warn_cflags, [ - echo - WARN_CFLAGS="" - - # Some warning options are not supported by all versions of - # gcc, so test all desired options against the current - # compiler. - # - # Note that there are some order dependencies - # here. Specifically, an option that disables a warning will - # have no net effect if a later option then enables that - # warnings, (perhaps implicitly). So we put some grouped - # options (-Wall and -Wextra) up front and the -Wno options - # last. - - for W in $MAYBE_WARN; do - CAIRO_CC_TRY_FLAG([$W],, [WARN_CFLAGS="$WARN_CFLAGS $W"]) - done - for W in $NO_WARN; do - CAIRO_CC_TRY_FLAG([-W$W -Wno-$W],, [WARN_CFLAGS="$WARN_CFLAGS -Wno-$W"]) - done - cairo_cv_warn_cflags=$WARN_CFLAGS - cairo_cv_warn_maybe="$MAYBE_WARN $MAYBE_C_SPECIFIC_WARN" - - AC_MSG_CHECKING([which warning flags were supported]) -]) -WARN_CFLAGS="$cairo_cv_warn_cflags" -CAIRO_CFLAGS="$CAIRO_CFLAGS $WARN_CFLAGS" - -# We only wish to enable attribute(warn_unused_result) if we can prevent -# gcc from generating thousands of warnings about the misapplication of the -# attribute to void functions and variables. -AC_CACHE_CHECK([how to enable unused result warnings], cairo_cv_warn_unused_result, [ - AC_REQUIRE([AC_PROG_GREP]) - cairo_cv_warn_unused_result="" - if echo $WARN_CFLAGS | $GREP -e '-Wno-attributes' >/dev/null; then - CAIRO_CC_TRY_FLAG_SILENT( - [-Wno-attributes], - [__attribute__((__warn_unused_result__)) void f (void) {} - __attribute__((__warn_unused_result__)) int g;], - [cairo_cv_warn_unused_result="__attribute__((__warn_unused_result__))"]) - fi -]) -AC_DEFINE_UNQUOTED([WARN_UNUSED_RESULT], [$cairo_cv_warn_unused_result], - [Define to the value your compiler uses to support the warn-unused-result attribute]) - -dnl check linker flags -AC_CACHE_CHECK([how to allow undefined symbols in shared libraries used by test suite], cairo_cv_test_undefined_ldflags, - [CAIRO_CC_TRY_FLAG_SILENT([-Wl,--allow-shlib-undefined], [], - [cairo_cv_test_undefined_ldflags="-Wl,--allow-shlib-undefined]")]) -CAIRO_TEST_UNDEFINED_LDFLAGS="$cairo_cv_test_undefined_ldflags" -AC_SUBST(CAIRO_TEST_UNDEFINED_LDFLAGS) |