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From: "bilbotheelffriend at gmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug preprocessor/60975] -Wvariadic-macros does not print warning Date: Sat, 26 Apr 2014 12:23:00 -0000 [thread overview] Message-ID: <bug-60975-4-pTBnulVK2Q@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-60975-4@http.gcc.gnu.org/bugzilla/> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60975 --- Comment #2 from Prathamesh <bilbotheelffriend at gmail dot com> --- Hi, Consider the following test-case: #define FOO(a...) When compiled with: gcc -E -Wpedantic the following warning gets printed: empty-arg.c:1:14: warning: ISO C does not permit named variadic macros [-Wvariadic-macros] #define FOO(a...) ^ However If I only pass -Wvariadic-macros, the warning is not printed. For example: gcc -E -Wvariadic-macros and neither does gcc -E -Wvariadic-macros -std=c90 Is that intended ? Tested on gcc-4.8.2 gcc -v: Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.8/lto-wrapper Target: x86_64-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Ubuntu 4.8.2-19ubuntu1' --with-bugurl=file:///usr/share/doc/gcc-4.8/README.Bugs --enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.8 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.8 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object --disable-libmudflap --enable-plugin --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64 --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.8-amd64 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-objc-gc --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu Thread model: posix gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1)
next prev parent reply other threads:[~2014-04-26 12:23 UTC|newest] Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top 2014-04-26 12:10 [Bug preprocessor/60975] New: a bilbotheelffriend at gmail dot com 2014-04-26 12:13 ` [Bug preprocessor/60975] -Wvariadic-macros does not print warning bilbotheelffriend at gmail dot com 2014-04-26 12:15 ` bilbotheelffriend at gmail dot com 2014-04-26 12:23 ` bilbotheelffriend at gmail dot com [this message] 2014-04-28 9:40 ` rguenth at gcc dot gnu.org
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