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