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# Copyright (C) 2002-2021 Erik de Castro Lopo <erikd@mega-nerd.com>
dnl Require autoconf version >= 2.69)
AC_PREREQ([2.69])
AC_INIT([sndfile-tools],[1.5],[sndfile@mega-nerd.com],
[sndfile-tools],[https://github.com/libsndfile/sndfile-tools/])
dnl Check whether we want to set defaults for CFLAGS, CPPFLAGS and LDFLAGS
AC_MSG_CHECKING([whether configure should try to set CFLAGS/CPPFLAGS/LDFLAGS])
AS_IF([test "x${CFLAGS+set}" = "xset" || test "x${CPPFLAGS+set}" = "xset" || test "x${LDFLAGS+set}" = "xset"], [
enable_flags_setting=no
: ${CFLAGS=""}
], [
enable_flags_setting=yes
dnl Set to empty flags so AC_PROG_CC does not add -g -O2
CFLAGS=""
])
AC_MSG_RESULT([${enable_flags_setting}])
dnl Put config stuff in 'build-aux'.
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_SRCDIR([src/spectrogram.c])
AC_CANONICAL_HOST
AC_CONFIG_MACRO_DIR([m4])
AC_CONFIG_HEADERS([src/config.h])
AM_INIT_AUTOMAKE([1.14 foreign dist-bzip2 no-dist-gzip subdir-objects])
AM_SILENT_RULES([yes])
dnl ====================================================================================
AC_PROG_CC
AC_PROG_CC_C99
AS_IF([test "x$ac_cv_prog_cc_c99" = "xno"], [
AC_MSG_ERROR([sndfile-tools requires a C99 capable compiler!])
])
AC_LANG([C])
AX_COMPILER_VENDOR
AX_COMPILER_VERSION
dnl ====================================================================================
dnl Finished checking, handle options.
AC_ARG_ENABLE([werror],
[AS_HELP_STRING([--enable-werror], [enable -Werror in all Makefiles])])
AC_ARG_ENABLE([jack],
[AS_HELP_STRING([--disable-jack], [disable use of JACK (default=autodetect)])], [], [enable_jack=auto])
dnl ====================================================================================
dnl Check for functions.
AC_SEARCH_LIBS([floor], [m], [], [
AC_MSG_ERROR([unable to find the floor() function!])
])
AC_CHECK_FUNCS([floor ceil fmod lrint lrintf])
dnl ====================================================================================
dnl Check for libsndfile.
PKG_CHECK_MODULES([SNDFILE], [sndfile >= 1.0.19], [
AC_DEFINE([HAVE_SNDFILE], [1], [Set to 1 if you have libsndfile])
], [
AC_MSG_ERROR([libsndfile could not be found!])
])
dnl ====================================================================================
dnl Check for libsamplerate.
PKG_CHECK_MODULES([SAMPLERATE], [samplerate >= 0.1.5], [
AC_DEFINE([HAVE_SAMPLERATE], [1], [Set to 1 if you have libsamplerate])
], [
AC_MSG_ERROR([libsamplerate could not be found!])
])
dnl ====================================================================================
dnl Check for libfftw3 which is required for src/sndfile-spectrogram.c).
PKG_CHECK_MODULES([FFTW3], [fftw3 >= 0.15.0], [
AC_DEFINE([HAVE_FFTW3], [1], [Set to 1 if you have FFTW])
], [
AC_MSG_ERROR([FFTW could not be found!])
])
dnl ====================================================================================
dnl Check for libcairo which is required for src/sndfile-spectrogram.c.
PKG_CHECK_MODULES([CAIRO], [cairo >= 1.4.0], [
AC_DEFINE([HAVE_CAIRO], [1], [Set to 1 if you have Cairo])
], [
AC_MSG_ERROR([Cairo could not be found!])
])
dnl ====================================================================================
dnl Check for JACK which is required for src/sndfile-jackplay.c.
AS_IF([test "x$enable_jack" != "xno"], [
PKG_CHECK_MODULES([JACK], [jack >= 0.100], [
AC_DEFINE([HAVE_JACK], [1], [Set to 1 if you have JACK])
enable_jack="yes"
AX_PTHREAD
JACK_CFLAGS="${JACK_CFLAGS} ${PTHREAD_CFLAGS}"
JACK_LIBS="${JACK_LIBS} ${PTHREAD_LIBS}"
], [
AS_IF([test "x$enable_jack" = "xyes"], [
dnl explicitly passed --enable-jack, hence error out loud and clearly
AC_MSG_ERROR([You explicitly requested JACK support, but JACK could not be found!])
], [
dnl did not explicitly pass --enable-jack, relying on default automagic on
enable_jack="no (auto)"
])
])
])
AM_CONDITIONAL([HAVE_JACK], [test "x$enable_jack" = "xyes"])
dnl ====================================================================================
dnl Compiler stuff.
AS_IF([test "x$enable_flags_setting" = "xyes"], [
AX_APPEND_COMPILE_FLAGS([-O2 -pipe], [CFLAGS])
AS_CASE([${host_os}],
[darwin*], [
ldflags_test="-Wl,-dead_strip_dylibs"],
[linux*], [
ldflags_test="-Wl,-O1 -Wl,--as-needed -Wl,--no-undefined -Wl,--gc-sections"]
)
AX_APPEND_LINK_FLAGS([${ldflags_test}], [LDFLAGS])
])
AS_IF([test "x$enable_werror" = "xyes"], [
AX_APPEND_COMPILE_FLAGS([-Werror], [CFLAGS])
])
AX_APPEND_COMPILE_FLAGS([-Wall -Wextra -Wstrict-prototypes -Wmissing-prototypes -Waggregate-return -Wcast-align -Wcast-qual -Wnested-externs -Wshadow -Wpointer-arith], [CFLAGS])
dnl ====================================================================================
dnl Now use the information from the checking stage.
AC_CONFIG_FILES([Makefile])
AC_OUTPUT
dnl ====================================================================================
AX_RECURSIVE_EVAL([$bindir], [full_absolute_bindir])
AC_MSG_RESULT([
-=-=-=-=-=-=-=-=-=-= Configuration Complete =-=-=-=-=-=-=-=-=-=-=-
Configuration summary :
sndfile-tools version : ............... ${VERSION}
Host CPU : ............................ ${host_cpu}
Host Vendor : ......................... ${host_vendor}
Host OS : ............................. ${host_os}
CFLAGS : .............................. ${CFLAGS}
CPPFLAGS : ............................ ${CPPFLAGS}
LDFLAGS : ............................. ${LDFLAGS}
Tools :
C Compiler Vendor is : ................ ${ax_cv_c_compiler_vendor} (${ax_cv_c_compiler_version})
Extra tools required for testing and examples :
Found libjack ......................... ${enable_jack}
Installation directories :
Program directory : ................... ${full_absolute_bindir}
])
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