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acinclude.m4
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acinclude.m4
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dnl Backward compatibility with older pkg-config <= 0.28
dnl Retrieves the value of the pkg-config variable
dnl for the given module.
dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
dnl ====================================================
m4_ifndef([PKG_CHECK_VAR], [
AC_DEFUN([PKG_CHECK_VAR],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
_PKG_CONFIG([$1], [variable="][$3]["], [$2])
AS_VAR_COPY([$1], [pkg_cv_][$1])
AS_VAR_IF([$1], [""], [$5], [$4])dnl
])
])
dnl Add $1 to CFLAGS and CXXFLAGS if supported
dnl ==========================================
AC_DEFUN([AUD_CHECK_CFLAGS],[
AC_MSG_CHECKING([whether the C/C++ compiler supports $1])
OLDCFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $1 -Werror"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[return 0;])],[
AC_MSG_RESULT(yes)
CFLAGS="$OLDCFLAGS $1"
CXXFLAGS="$CXXFLAGS $1"
],[
AC_MSG_RESULT(no)
CFLAGS="$OLDCFLAGS"
])
])
dnl Add $1 to CXXFLAGS if supported
dnl ===============================
AC_DEFUN([AUD_CHECK_CXXFLAGS],[
AC_MSG_CHECKING([whether the C++ compiler supports $1])
AC_LANG_PUSH([C++])
OLDCXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS $1 -Werror"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[return 0;])],[
AC_MSG_RESULT(yes)
CXXFLAGS="$OLDCXXFLAGS $1"
],[
AC_MSG_RESULT(no)
CXXFLAGS="$OLDCXXFLAGS"
])
AC_LANG_POP([C++])
])
dnl **
dnl ** Common checks
dnl **
AC_DEFUN([AUD_COMMON_PROGS], [
dnl Check platform
dnl ==============
AC_CANONICAL_HOST
AC_CANONICAL_TARGET
AC_MSG_CHECKING([operating system type])
HAVE_LINUX=no
HAVE_MSWINDOWS=no
HAVE_DARWIN=no
case "$target" in
*linux*)
AC_MSG_RESULT(Linux)
HAVE_LINUX=yes
;;
*mingw*)
AC_MSG_RESULT(Windows)
HAVE_MSWINDOWS=yes
;;
*darwin*)
AC_MSG_RESULT(Darwin)
HAVE_DARWIN=yes
;;
*)
AC_MSG_RESULT(other UNIX)
;;
esac
AC_SUBST(HAVE_MSWINDOWS)
AC_SUBST(HAVE_LINUX)
AC_SUBST(HAVE_DARWIN)
dnl Check for C and C++ compilers
dnl =============================
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([AC_PROG_CXX])
AC_REQUIRE([AC_C_BIGENDIAN])
AC_REQUIRE([AC_SYS_LARGEFILE])
if test "x$GCC" = "xyes"; then
CFLAGS="$CFLAGS -std=gnu99 -ffast-math -Wall -pipe"
CXXFLAGS="$CXXFLAGS -ffast-math -Wall -pipe"
# use C++17 if possible (Qt 6 requires it)
AUD_CHECK_CXXFLAGS(-std=gnu++17)
if test "${CXXFLAGS%gnu++17}" = "$CXXFLAGS" ; then
CXXFLAGS="$CXXFLAGS -std=gnu++11"
fi
AUD_CHECK_CFLAGS(-Wtype-limits)
AUD_CHECK_CFLAGS(-Wno-stringop-truncation)
AUD_CHECK_CXXFLAGS(-Woverloaded-virtual)
fi
dnl On Mac, check for Objective-C and -C++ compilers
dnl ================================================
if test "x$HAVE_DARWIN" = "xyes"; then
AC_PROG_OBJC
AC_PROG_OBJCPP
AC_PROG_OBJCXX
AC_PROG_OBJCXXCPP
OBJCXXFLAGS="$OBJCXXFLAGS -std=c++11"
fi
dnl Enable "-Wl,-z,defs" only on Linux
dnl ==================================
if test $HAVE_LINUX = yes ; then
LDFLAGS="$LDFLAGS -Wl,-z,defs"
fi
dnl MinGW-specific flags
dnl ====================
if test $HAVE_MSWINDOWS = yes ; then
AC_DEFINE([__USE_MINGW_ANSI_STDIO], [1], "Use GNU-style printf")
fi
dnl Byte order
dnl ==========
AC_C_BIGENDIAN([BIGENDIAN=1], [BIGENDIAN=0],
[AC_MSG_ERROR([Unknown machine byte order])],
[AC_MSG_ERROR([Universal builds are not supported, sorry])])
AC_SUBST([BIGENDIAN])
dnl Prevent symbol collisions
dnl =========================
if test "x$HAVE_MSWINDOWS" = "xyes" ; then
EXPORT="__declspec(dllexport)"
elif test "x$GCC" = "xyes" ; then
CFLAGS="$CFLAGS -fvisibility=hidden"
CXXFLAGS="$CXXFLAGS -fvisibility=hidden"
EXPORT="__attribute__((visibility(\"default\")))"
else
AC_MSG_ERROR([Unknown syntax for EXPORT keyword])
fi
AC_DEFINE_UNQUOTED([EXPORT], [$EXPORT], [Define to compiler syntax for public symbols])
dnl Checks for various programs
dnl ===========================
AC_PROG_LN_S
AC_PATH_PROG([RM], [rm])
AC_PATH_PROG([MV], [mv])
AC_PATH_PROG([CP], [cp])
AC_PATH_TOOL([AR], [ar])
AC_PATH_TOOL([RANLIB], [ranlib])
AC_PATH_TOOL([RC], [windres])
dnl Check for POSIX threads
dnl =======================
AC_SEARCH_LIBS([pthread_create], [pthread])
dnl Check for GTK and pals
dnl ======================
PKG_CHECK_MODULES(GLIB, glib-2.0 >= 2.32)
PKG_CHECK_MODULES(GMODULE, gmodule-2.0 >= 2.32)
AC_DEFINE([GLIB_VERSION_MIN_REQUIRED], [GLIB_VERSION_2_32], [target GLib 2.32])
dnl GTK support
dnl ===========
AC_ARG_ENABLE(gtk,
AS_HELP_STRING(--disable-gtk, [Disable GTK support (default=enabled)]),
USE_GTK=$enableval, USE_GTK=yes)
AC_ARG_ENABLE(gtk2,
AS_HELP_STRING(--enable-gtk2, [Use GTK 2 instead of GTK 3 (default=disabled)]),
USE_GTK2=$enableval, USE_GTK2=no)
if test $USE_GTK2 = yes ; then
PKG_CHECK_MODULES(GTK, gtk+-2.0 >= 2.24)
AC_DEFINE([USE_GTK], [1], [Define if GTK support enabled])
elif test $USE_GTK = yes ; then
PKG_CHECK_MODULES(GTK, gtk+-3.0 >= 3.18)
AC_DEFINE(USE_GTK, 1, [Define if GTK support enabled])
AC_DEFINE(USE_GTK3, 1, [Define if GTK 3 support enabled])
fi
AC_SUBST(USE_GTK)
AC_SUBST(USE_GTK3)
if test $HAVE_MSWINDOWS = yes ; then
PKG_CHECK_MODULES(GIO, gio-2.0 >= 2.32)
else
PKG_CHECK_MODULES(GIO, gio-2.0 >= 2.32 gio-unix-2.0 >= 2.32)
fi
AC_SUBST(GLIB_CFLAGS)
AC_SUBST(GLIB_LIBS)
AC_SUBST(GIO_CFLAGS)
AC_SUBST(GIO_LIBS)
AC_SUBST(GMODULE_CFLAGS)
AC_SUBST(GMODULE_LIBS)
AC_SUBST(GTK_CFLAGS)
AC_SUBST(GTK_LIBS)
dnl Qt support
dnl ==========
AC_ARG_ENABLE(qt,
AS_HELP_STRING(--disable-qt, [Disable Qt support (default=enabled)]),
USE_QT=$enableval, USE_QT=yes)
AC_ARG_ENABLE(qt5,
AS_HELP_STRING(--enable-qt5, [Use Qt 5 instead of Qt 6 (default=disabled)]),
USE_QT5=$enableval, USE_QT5=no)
if test $USE_QT5 = yes ; then
PKG_CHECK_MODULES([QTCORE], [Qt5Core >= 5.2])
PKG_CHECK_VAR([QTBINPATH], [Qt5Core >= 5.2], [host_bins])
PKG_CHECK_MODULES([QT], [Qt5Core Qt5Gui Qt5Widgets Qt5Svg >= 5.2])
AC_DEFINE([USE_QT], [1], [Define if Qt support enabled])
# needed if Qt was built with -reduce-relocations
QTCORE_CFLAGS="$QTCORE_CFLAGS -fPIC"
QT_CFLAGS="$QT_CFLAGS -fPIC"
elif test $USE_QT = yes ; then
PKG_CHECK_MODULES([QTCORE], [Qt6Core >= 6.0])
PKG_CHECK_VAR([QTBINPATH], [Qt6Core >= 6.0], [libexecdir])
PKG_CHECK_MODULES([QT], [Qt6Core Qt6Gui Qt6Widgets Qt6Svg >= 6.0])
AC_DEFINE([USE_QT], [1], [Define if Qt support enabled])
fi
AC_SUBST(USE_QT)
AC_SUBST(USE_QT5)
AC_SUBST(QT_CFLAGS)
AC_SUBST(QT_LIBS)
AC_SUBST(QTBINPATH)
])