X-Git-Url: https://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=configure.ac;h=89b34ae7313ef0b183a625cc2692bd22902ec423;hp=e6b9211c87a76ecf44884768b8c446a7f2cbf768;hb=2388c075d46055bd33ee824c399d72c219b98d90;hpb=0614a2e61ccbf150cc51d4fd3073b285983417c5

diff --git a/configure.ac b/configure.ac
index e6b9211..89b34ae 100644
--- a/configure.ac
+++ b/configure.ac
@@ -6,9 +6,9 @@ dnl Process this file with autoconf to produce a configure script.
 
 # Project version information
 m4_define([urcu_version_major], [0])
-m4_define([urcu_version_minor], [12])
+m4_define([urcu_version_minor], [13])
 m4_define([urcu_version_patch], [0])
-m4_define([urcu_version_dev_stage], [])
+m4_define([urcu_version_dev_stage], [-pre])
 m4_define([urcu_version], urcu_version_major[.]urcu_version_minor[.]urcu_version_patch[]urcu_version_dev_stage)
 
 # Library version information of "liburcu"
@@ -96,6 +96,39 @@ AC_TYPE_UINT32_T
 AC_TYPE_UINT64_T
 AC_TYPE_UINT8_T
 
+# Detect warning flags supported by the C compiler and append them to
+# WARN_CFLAGS.
+m4_define([WARN_FLAGS_LIST], [ dnl
+  -Wall dnl
+  -Wextra dnl
+  -Wmissing-prototypes dnl
+  -Wmissing-declarations dnl
+  -Wnull-dereference dnl
+  -Wundef dnl
+  -Wshadow dnl
+  -Wjump-misses-init dnl
+  -Wsuggest-attribute=format dnl
+  -Wtautological-constant-out-of-range-compare dnl
+  -Wnested-externs dnl
+  -Wwrite-strings dnl
+  -Wformat=2 dnl
+  -Wstrict-aliasing dnl
+  -Wmissing-noreturn dnl
+  -Winit-self dnl
+  -Wduplicated-cond dnl
+  -Wduplicated-branches dnl
+  -Wlogical-op dnl
+  dnl
+  dnl-Wredundant-decls dnl
+  -Wno-null-dereference dnl
+])
+
+# Pass -Werror as an extra flag during the test: this is needed to make the
+# -Wunknown-warning-option diagnostic fatal with clang.
+AC_LANG_PUSH([C])
+AX_APPEND_COMPILE_FLAGS([WARN_FLAGS_LIST], [WARN_CFLAGS], [-Werror])
+AC_LANG_POP([C])
+
 
 ##               ##
 ## Header checks ##
@@ -118,7 +151,7 @@ AC_PROG_AWK
 AC_PROG_GREP
 AC_PROG_MAKE_SET
 AC_CHECK_PROGS(NPROC, [nproc gnproc])
-AC_CHECK_PROG(GETCONF, [getconf])
+AC_CHECK_PROGS(GETCONF, [getconf])
 AS_IF([test "x$NPROC" != "x"],
 	[NPROC_CMD=$NPROC],
 	[AS_IF([test "x$GETCONF" != "x"],
@@ -238,10 +271,13 @@ AC_SUBST([URCU_LIBRARY_VERSION], [urcu_lib_version])
 
 AC_SUBST(LT_NO_UNDEFINED)
 
-AM_CPPFLAGS="-include config.h"
+# The order in which the include folders are searched is important.
+# The top_builddir should always be searched first in the event that a build
+# time generated file is included.
+AM_CPPFLAGS="-I\$(top_builddir)/include -I\$(top_srcdir)/include -include config.h"
 AC_SUBST(AM_CPPFLAGS)
 
-AM_CFLAGS="-Wall -Wextra -Wno-unused-parameter $PTHREAD_CFLAGS"
+AM_CFLAGS="$WARN_CFLAGS $PTHREAD_CFLAGS"
 AC_SUBST(AM_CFLAGS)