btrfs-progs/configure.ac
Karel Zak 48e728d112 btrfs-progs: autoconf: add ./configure script
- add ./autogen.sh script (necessary after git clean/clone)
- add ./configure.ac
- copy autotool helper scripts from automake
- modify version.sh to be usable from the configure script
- rename Makefile to Makefile.in and use basic variables from configure.ac

Signed-off-by: Karel Zak <kzak@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
2015-01-28 17:55:36 +01:00

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AC_INIT([btrfs-progs],
m4_esyscmd([./version.sh --configure]),
[linux-btrfs@vger.kernel.org],,
[http://btrfs.wiki.kernel.org])
AC_PREREQ([2.60])
AC_CONFIG_AUX_DIR([config])
dnl AC_USE_SYSTEM_EXTENSIONS must be called before any macros that run
dnl the compiler (like AC_PROG_LIBTOOL) to avoid autoconf errors.
AC_USE_SYSTEM_EXTENSIONS
AC_CONFIG_SRCDIR([btrfs.c])
AC_PREFIX_DEFAULT([/usr])
AC_PROG_CC
AC_CANONICAL_HOST
AC_C_CONST
AC_C_VOLATILE
AC_C_BIGENDIAN
AC_SYS_LARGEFILE
AC_PROG_INSTALL
AC_CHECK_FUNCS([openat], [],
[AC_MSG_ERROR([cannot find openat() function])])
m4_ifndef([PKG_PROG_PKG_CONFIG],
[m4_fatal([Could not locate the pkg-config autoconf
macros. These are usually located in /usr/share/aclocal/pkg.m4.
If your macros are in a different location, try setting the
environment variable AL_OPTS="-I/other/macro/dir" before running
./autogen.sh or autoreconf again.])])
PKG_PROG_PKG_CONFIG
dnl
dnl Calls pkg-config --static
dnl
AC_DEFUN([PKG_STATIC], [
if AC_RUN_LOG([pkg-config --exists --print-errors "$2"]); then
$1=`pkg-config --libs --static "$2"`
AC_SUBST([$1])
else
AC_MSG_ERROR([pkg-config description of $2, needed for static build, is not available])
fi
])
dnl Define <NAME>_LIBS= and <NAME>_CFLAGS= by pkg-config
dnl
dnl The default PKG_CHECK_MODULES() action-if-not-found is end the
dnl execution with error. The static libs are optional.
PKG_CHECK_MODULES(BLKID, [blkid])
PKG_STATIC(BLKID_LIBS_STATIC, [blkid])
PKG_CHECK_MODULES(UUID, [uuid])
PKG_STATIC(UUID_LIBS_STATIC, [uuid])
PKG_CHECK_MODULES(ZLIB, [zlib])
PKG_STATIC(ZLIB_LIBS_STATIC, [zlib])
dnl lzo library does not provide pkg-config, let use classic way
AC_CHECK_LIB([lzo2], [lzo_version], [
LZO2_LIBS="-llzo2"
LZO2_CFLAGS=""
LZO2_LIBS_STATIC="-llzo2"],[
AC_MSG_ERROR([cannot find lzo2 library])
])
AC_SUBST([LZO2_LIBS])
AC_SUBST([LZO2_LIBS_STATIC])
AC_SUBST([LZO2_CFLAGS])
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_FILES([
Makefile
])
AC_OUTPUT
AC_MSG_RESULT([
${PACKAGE_NAME} ${PACKAGE_VERSION}
prefix: ${prefix}
exec prefix: ${exec_prefix}
bindir: ${bindir}
libdir: ${libdir}
includedir: ${includedir}
compiler: ${CC}
cflags: ${CFLAGS}
ldflags: ${LDFLAGS}
Type 'make' to compile.
])