From dcbe79bd630b6176eac7214834234218de744f2a Mon Sep 17 00:00:00 2001 From: "Ahmed S. Darwish" Date: Mon, 14 Mar 2016 00:00:03 +0200 Subject: build-sys: Set C language standard to gnu11 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Per glibc feature_test_macros(7), setting compiler flags to -std=c11 (or any c* variant like c99) enforces strict ANSI mode. Enforcing strict ANSI makes all declarations under _GNU_SOURCE unavailable. This leads to build warnings in the form of: warning: implicit declaration of function ‘syscall’ Thus replace -std=c11 with -std=gnu11 Signed-off-by: Ahmed S. Darwish --- configure.ac | 4 ++-- src/Makefile.am | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/configure.ac b/configure.ac index ee64988c7..623475daa 100644 --- a/configure.ac +++ b/configure.ac @@ -176,9 +176,9 @@ esac #### Compiler flags #### -AX_CHECK_COMPILE_FLAG([-std=c11], +AX_CHECK_COMPILE_FLAG([-std=gnu11], [], - [AC_MSG_ERROR([*** Compiler does not support -std=c11])], + [AC_MSG_ERROR([*** Compiler does not support -std=gnu11])], [-pedantic -Werror]) AX_APPEND_COMPILE_FLAGS( diff --git a/src/Makefile.am b/src/Makefile.am index 07cd537e8..b600dfba3 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -48,7 +48,7 @@ AM_CPPFLAGS = \ -DPA_SRCDIR=\"$(abs_srcdir)\" \ -DPA_BUILDDIR=\"$(abs_builddir)\" \ -DPULSE_LOCALEDIR=\"$(localedir)\" -AM_CFLAGS = -std=c11 \ +AM_CFLAGS = -std=gnu11 \ $(PTHREAD_CFLAGS) AM_CXXFLAGS = -std=c++11 \ $(PTHREAD_CFLAGS) -- cgit v1.2.1