libcruft-util/configure.ac

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AC_INIT([libgim], [0.1.0], [danny@nerdcruft.net])
## Explicitly set an empty CXXFLAGS if not present to prevent AC_PROG_CXX from
## generating a default -O2. This allows us to manually select -O0 when
## debugging is enabled.
: ${CXXFLAGS=""}
AC_CANONICAL_HOST
AC_PROG_CXX
AC_LANG([C++])
LT_INIT
AM_PROG_CC_C_O
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_MACRO_DIR([m4])
AC_CONFIG_HEADERS([config.h])
AM_INIT_AUTOMAKE([1.11 silent-rules])
AM_SILENT_RULES([yes])
AC_ARG_ENABLE([debugging],
[AS_HELP_STRING([--enable-debugging],
[enables developer debugging support])],
[ case "${enableval}" in
yes) ac_cv_debugging=yes ;;
no) ac_cv_debugging=no ;;
*) AC_MSG_ERROR([bad value for --enable-debugging=[yes|no]]) ;;
esac ],
[ac_cv_debugging=no])
AC_ARG_ENABLE([mudflap],
[AS_HELP_STRING([--enable-mudflap],
[enable mudflap runtime debugging])],
[ case "${enableval}" in
yes) ac_cv_mudflap=yes ;;
no) ac_cv_mudflap=no ;;
*) AC_MSG_ERROR([bad value for --enable-mudflap[yes|no]]) ;;
esac ],
[ac_cv_mudflap=no])
##
## Warnings
WARNING_FLAGS=""
AS_CXX_COMPILER_FLAG([-Wall], [WARNING_FLAGS="$WARNING_FLAGS -Wall"])
AS_CXX_COMPILER_FLAG([-Wextra], [WARNING_FLAGS="$WARNING_FLAGS -Wextra"])
AS_CXX_COMPILER_FLAG([-Wno-parentheses], [WARNING_FLAGS="$WARNING_FLAGS -Wno-parentheses"])
AS_CXX_COMPILER_FLAG([-Wpointer-arith], [WARNING_FLAGS="$WARNING_FLAGS -Wpointer-arith"])
AS_CXX_COMPILER_FLAG([-Wcast-qual], [WARNING_FLAGS="$WARNING_FLAGS -Wcast-qual"])
AS_CXX_COMPILER_FLAG([-Wcast-align], [WARNING_FLAGS="$WARNING_FLAGS -Wcast-align"])
AS_CXX_COMPILER_FLAG([-Wsign-compare], [WARNING_FLAGS="$WARNING_FLAGS -Wsign-compare"])
AS_CXX_COMPILER_FLAG([-Wsign-conversion], [WARNING_FLAGS="$WARNING_FLAGS -Wsign-conversion"])
AS_CXX_COMPILER_FLAG([-Wtype-limits], [WARNING_FLAGS="$WARNING_FLAGS -Wtype-limits"])
AS_CXX_COMPILER_FLAG([-Wfloat-equal], [WARNING_FLAGS="$WARNING_FLAGS -Wfloat-equal"])
AS_CXX_COMPILER_FLAG([-Wswitch-default], [COMMON_CFLAGS="$COMMON_CFLAGS -Wswitch-default"])
#AS_CXX_COMPILER_FLAG([-Wswitch-enum], [COMMON_CFLAGS="$COMMON_CFLAGS -Wswitch-enum"])
#AS_CXX_COMPILER_FLAG([-Wzero-as-null-pointer-constant], [WARNING_FLAGS="$WARNING_FLAGS -Wzero-as-null-pointer-constant"])
AS_CXX_COMPILER_FLAG([-Wunused-parameter], [WARNING_FLAGS="$WARNING_FLAGS -Wunused-parameter"])
AS_CXX_COMPILER_FLAG([-Wunused-but-set-variable], [WARNING_FLAGS="$WARNING_FLAGS -Wunused-parameter"])
AS_CXX_COMPILER_FLAG([-Wshadow], [WARNING_FLAGS="$WARNING_FLAGS -Wshadow"])
AS_CXX_COMPILER_FLAG([-Wredundant-decls], [WARNING_FLAGS="$WARNING_FLAGS -Wredundant-decls"])
AS_CXX_COMPILER_FLAG([-pedantic], [COMMON_CFLAGS="$COMMON_CFLAGS -pedantic"])
##
## Compilation
AS_CXX_COMPILER_FLAG([-fno-common ], [COMMON_CFLAGS="$COMMON_CFLAGS -fno-common "])
AS_CXX_COMPILER_FLAG([-fno-nonansi-builtins],
[COMMON_CFLAGS="$COMMON_CFLAGS -fno-nonansi-builtins"])
##AS_CXX_COMPILER_FLAG([-fno-rtti], [COMMON_CFLAGS="$COMMON_CFLAGS -fno-rtti"])
AS_CXX_COMPILER_FLAG([-fno-deduce-init-list], [COMMON_CFLAGS="$COMMON_CFLAGS -fno-deduce-init-list "])
##
## Compiler features
AC_C_CONST
AC_C_RESTRICT
AC_C_INLINE
##
## Architecture features
AC_C_BIGENDIAN
##
## Useful headers or platform features
AC_TYPE_SIZE_T
AC_TYPE_SSIZE_T
##
## platform features
#AC_DEFINE([_GNU_SOURCE], [], [Description])
case $host_os in
mingw32)
AM_CONDITIONAL([PLATFORM_WIN32], [true])
AM_CONDITIONAL([PLATFORM_LINUX], [false])
AC_CHECK_HEADERS([winsock2.h ws2tcpip.h])
AC_SUBST([NET_LIBS], [-lws2_32])
#COMMON_LDFLAGS="$COMMON_LDFLAGS -ldbghelp"
;;
linux-gnu)
AM_CONDITIONAL([PLATFORM_WIN32], [false])
AM_CONDITIONAL([PLATFORM_LINUX], [true])
;;
*)
AC_ERROR([Unknown host_os])
;;
esac
AC_FUNC_MMAP
AC_CHECK_FUNC([strndup], [
AC_DEFINE([HAVE_STRNDUP], [], [strndup appears to be present])
])
AC_CHECK_HEADER([execinfo.h], [break])
AM_CONDITIONAL([HAVE_EXECINFO], [test x$ac_cv_header_execinfo_h = "xyes"])
AC_SEARCH_LIBS([clock_gettime], [rt])
if [[ "x$ac_cv_search_clock_gettime" == "x-*" ]]; then
COMMON_LDFLAGS="$COMMON_LDFLAGS $ac_cv_search_clock_gettime"
fi
##
## Debug features
if test "x$ac_cv_debugging" = "xyes"; then
COMMON_CFLAGS="$COMMON_CFLAGS -O0"
if test "x$ac_cv_mudflap" = "xyes"; then
AS_CXX_COMPILER_FLAG([-fmudflapth], [
COMMON_CFLAGS="$COMMON_CFLAGS -fmudflapth";
COMMON_LDFLAGS="$COMMON_LDFLAGS -lmudflapth"
])
fi
AC_DEFINE([ENABLE_DEBUGGING], [], [Description])
AC_DEFINE([_FORTIFY_SOURCE], [2], [Description])
AC_DEFINE([_GLIBCXX_DEBUG], [], [Description])
else
## Use 'none' LTO partitioning to avoid discarded section linker errors
## against boost
COMMON_CFLAGS="$COMMON_CFLAGS -O2 -flto=8 -flto-partition=none"
COMMON_LDFLAGS="$COMMON_LDFLAGS -flto=8 -flto-partition=none"
fi
case $host_os in
mingw32)
COMMON_CFLAGS="$COMMON_CFLAGS -gstabs"
;;
linux-gnu)
COMMON_CFLAGS="$COMMON_CFLAGS -g"
AS_CXX_COMPILER_FLAG([-ggdb], [COMMON_CFLAGS="$COMMON_CFLAGS -ggdb"])
;;
*)
AC_ERROR([Unknown host_os])
;;
esac
case $host_cpu in
x86_64)
OPTIMISATION_FLAGS="$OPTIMISATION_FLAGS -mtune=generic"
;;
i686)
OPTIMISATION_FLAGS="$OPTIMISATION_FLAGS -march=prescott -mtune=generic -mfpmath=sse"
;;
*)
AC_MSG_ERROR([Unknown target CPU])
;;
esac
##
## Documentation
##
## Required packages
CHECK_RAGEL([ip.cpp])
AX_BOOST_BASE([1.49], [], [AC_MSG_ERROR([Boost version >= 1.42 required])])
AC_SUBST(BOOST_CPPFLAGS)
AC_SUBST(BOOST_LDFLAGS)
# boost-system isn't a hard requirement, it's only really used to fulfill
# some other dependency I've since forgotten about...
AX_BOOST_SYSTEM
AX_BOOST_FILESYSTEM
AC_SUBST(BOOST_FILESYSTEM_LIB)
if test "x$ax_cv_boost_filesystem" != "xyes"; then
AC_MSG_ERROR("boost-filesystem is a hard requirement")
fi
## Optional packages
## Output
COMMON_CXXFLAGS="-std=c++0x -pipe -include config.h $WARNING_FLAGS $OPTIMISATION_FLAGS $COMMON_CFLAGS"
COMMON_LDFLAGS="$COMMON_LDFLAGS "
AC_SUBST(COMMON_CXXFLAGS)
AC_SUBST(COMMON_LDFLAGS)
AC_CONFIG_FILES([
Doxyfile
Makefile
test/Makefile
])
AC_OUTPUT