configure.ac - chromiumos/third_party/libsigrokdecode - Git at Google

 ##
 ## This file is part of the libsigrokdecode project.
 ##
 ## Copyright (C) 2010 Bert Vermeulen <bert@biot.com>
 ##
 ## This program is free software: you can redistribute it and/or modify
 ## it under the terms of the GNU General Public License as published by
 ## the Free Software Foundation, either version 3 of the License, or
 ## (at your option) any later version.
 ##
 ## This program is distributed in the hope that it will be useful,
 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 ## GNU General Public License for more details.
 ##
 ## You should have received a copy of the GNU General Public License
 ## along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ##

 # We require at least autoconf 2.63 (AC_INIT format changed there).
 AC_PREREQ([2.63])

 # libsigrokdecode package version number (NOT the same as shared lib version!).
 AC_INIT([libsigrokdecode], [0.5.0],
 	[sigrok-devel@lists.sourceforge.net], [libsigrokdecode],
 	[http://www.sigrok.org])
 AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_AUX_DIR([autostuff])
 AC_CONFIG_HEADERS([config.h version.h])

 # We require at least automake 1.11 (needed for 'silent rules').
 AM_INIT_AUTOMAKE([1.11 -Wall -Werror no-define subdir-objects check-news color-tests])
 AM_SILENT_RULES([yes])
 m4_ifdef([AM_PROG_AR], [AM_PROG_AR])

 AC_CANONICAL_HOST

 # Checks for programs.
 AC_PROG_CC
 AC_PROG_INSTALL
 AC_PROG_LN_S

 # Required for per-target flags or subdir-objects with C sources.
 AM_PROG_CC_C_O

 # Set the standard the C library headers should conform to.
 AH_VERBATIM([_POSIX_C_SOURCE], [/* The targeted POSIX standard. */
 #ifndef _POSIX_C_SOURCE
 # define _POSIX_C_SOURCE 200112L
 #endif])

 # Get compiler versions.
 SR_PROG_VERSION([$CC], [srd_cc_version])

 # Initialize libtool.
 LT_INIT

 # Set up the libsigrokdecode version defines.
 SR_PKG_VERSION_SET([SRD_PACKAGE_VERSION], [AC_PACKAGE_VERSION])

 # Library version for libsigrokdecode (NOT the same as the package version).
 # Carefully read the libtool docs before updating these numbers!
 # The algorithm for determining which number to change (and how) is nontrivial!
 # http://www.gnu.org/software/libtool/manual/libtool.html#Updating-version-info
 # Format: current:revision:age.
 SR_LIB_VERSION_SET([SRD_LIB_VERSION], [3:0:0])

 AM_CONDITIONAL([WIN32], [test -z "${host_os##mingw*}" || test -z "${host_os##cygwin*}"])

 ############################
 ##  Package dependencies  ##
 ############################

 # Initialize pkg-config.
 # We require at least 0.22, as "Requires.private" behaviour changed there.
 PKG_PROG_PKG_CONFIG([0.22])

 # Collect the pkg-config module names of all dependencies in SRD_PKGLIBS.
 # These are used to derive the compiler flags and for the "Requires.private"
 # field in the generated libsigrokdecode.pc file.
 SRD_PKGLIBS=
 SRD_PKGLIBS_TESTS=

 # Keep track of all checked modules so we can list them at the end.
 SR_PKG_CHECK_SUMMARY([srd_pkglibs_summary])

 # Python 3 is always needed.
 SR_PKG_CHECK([python3], [SRD_PKGLIBS],
 	[python3 >= 3.2], [python-3.6 >= 3.6], [python-3.5 >= 3.5], [python-3.4 >= 3.4], [python-3.3 >= 3.3], [python-3.2 >= 3.2])
 AS_IF([test "x$sr_have_python3" = xno],
 	[AC_MSG_ERROR([Cannot find Python 3 development headers.])])

 # We also need to find the name of the python3 executable (for 'make install').
 # Some OSes call this python3, some call it python3.2, etc. etc.
 AC_ARG_VAR([PYTHON3], [Python 3 interpreter])
 AC_CHECK_PROGS([PYTHON3], [python3.6 python3.5 python3.4 python3.3 python3.2 python3])
 AS_IF([test "x$PYTHON3" = x],
 	[AC_MSG_ERROR([Cannot find Python 3 interpreter.])])

 ######################
 ##  Feature checks  ##
 ######################

 # Keep track of all checked modules so we can list them at the end.
 SR_PKG_CHECK_SUMMARY([srd_pkglibs_opt_summary])

 # The Check unit testing framework is optional. Disable if not found.
 SR_PKG_CHECK([check], [SRD_PKGLIBS_TESTS], [check >= 0.9.4])
 AM_CONDITIONAL([HAVE_CHECK], [test "x$sr_have_check" = xyes])

 # Enable the C99 standard if possible, and enforce the use
 # of SRD_API to explicitly mark all public API functions.
 SRD_EXTRA_CFLAGS=
 SR_CHECK_COMPILE_FLAGS([SRD_EXTRA_CFLAGS], [C99], [-std=c99 -c99 -AC99 -qlanglvl=extc99])
 SR_CHECK_COMPILE_FLAGS([SRD_EXTRA_CFLAGS], [visibility], [-fvisibility=hidden])

 # Select suitable compiler warning flags.
 SR_ARG_ENABLE_WARNINGS([SRD_WFLAGS], [-Wall], [-Wall -Wextra -Wmissing-prototypes])

 # Link against libm, this is required (among other things) by Python.
 SRD_EXTRA_LIBS=
 SR_SEARCH_LIBS([SRD_EXTRA_LIBS], [pow], [m])

 AC_SYS_LARGEFILE

 ##############################
 ##  Finalize configuration  ##
 ##############################

 AC_SUBST([SRD_PKGLIBS])

 # Retrieve the compile and link flags for all modules combined.
 # Also, bail out at this point if any module dependency is not met.
 PKG_CHECK_MODULES([LIBSIGROKDECODE], [glib-2.0 >= 2.28.0 $SRD_PKGLIBS])
 PKG_CHECK_MODULES([TESTS], [$SRD_PKGLIBS_TESTS glib-2.0 $SRD_PKGLIBS])

 srd_glib_version=`$PKG_CONFIG --modversion glib-2.0 2>&AS_MESSAGE_LOG_FD`

 AC_CONFIG_FILES([Makefile libsigrokdecode.pc])

 AC_OUTPUT

 cat >&AS_MESSAGE_FD <<_EOF

 libsigrokdecode configuration summary:
  - Package version................. $SRD_PACKAGE_VERSION
  - Library ABI version............. $SRD_LIB_VERSION
  - Prefix.......................... $prefix
  - Building on..................... $build
  - Building for.................... $host
  - Building shared / static........ $enable_shared / $enable_static

 Compile configuration:
  - C compiler...................... $CC
  - C compiler version.............. $srd_cc_version
  - C compiler flags................ $CFLAGS
  - Additional C compiler flags..... $SRD_EXTRA_CFLAGS
  - C compiler warnings............. $SRD_WFLAGS
  - Linker flags.................... $LDFLAGS

 Detected libraries (required):
  - glib-2.0 >= 2.28.0.............. $srd_glib_version
 $srd_pkglibs_summary
 Detected libraries (optional):
 $srd_pkglibs_opt_summary
 _EOF
	##
	## This file is part of the libsigrokdecode project.
	##
	## Copyright (C) 2010 Bert Vermeulen <bert@biot.com>
	##
	## This program is free software: you can redistribute it and/or modify
	## it under the terms of the GNU General Public License as published by
	## the Free Software Foundation, either version 3 of the License, or
	## (at your option) any later version.
	##
	## This program is distributed in the hope that it will be useful,
	## but WITHOUT ANY WARRANTY; without even the implied warranty of
	## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	## GNU General Public License for more details.
	##
	## You should have received a copy of the GNU General Public License
	## along with this program. If not, see <http://www.gnu.org/licenses/>.
	##

	# We require at least autoconf 2.63 (AC_INIT format changed there).
	AC_PREREQ([2.63])

	# libsigrokdecode package version number (NOT the same as shared lib version!).
	AC_INIT([libsigrokdecode], [0.5.0],
	[sigrok-devel@lists.sourceforge.net], [libsigrokdecode],
	[http://www.sigrok.org])
	AC_CONFIG_MACRO_DIR([m4])
	AC_CONFIG_AUX_DIR([autostuff])
	AC_CONFIG_HEADERS([config.h version.h])

	# We require at least automake 1.11 (needed for 'silent rules').
	AM_INIT_AUTOMAKE([1.11 -Wall -Werror no-define subdir-objects check-news color-tests])
	AM_SILENT_RULES([yes])
	m4_ifdef([AM_PROG_AR], [AM_PROG_AR])

	AC_CANONICAL_HOST

	# Checks for programs.
	AC_PROG_CC
	AC_PROG_INSTALL
	AC_PROG_LN_S

	# Required for per-target flags or subdir-objects with C sources.
	AM_PROG_CC_C_O

	# Set the standard the C library headers should conform to.
	AH_VERBATIM([_POSIX_C_SOURCE], [/* The targeted POSIX standard. */
	#ifndef _POSIX_C_SOURCE
	# define _POSIX_C_SOURCE 200112L
	#endif])

	# Get compiler versions.
	SR_PROG_VERSION([$CC], [srd_cc_version])

	# Initialize libtool.
	LT_INIT

	# Set up the libsigrokdecode version defines.
	SR_PKG_VERSION_SET([SRD_PACKAGE_VERSION], [AC_PACKAGE_VERSION])

	# Library version for libsigrokdecode (NOT the same as the package version).
	# Carefully read the libtool docs before updating these numbers!
	# The algorithm for determining which number to change (and how) is nontrivial!
	# http://www.gnu.org/software/libtool/manual/libtool.html#Updating-version-info
	# Format: current:revision:age.
	SR_LIB_VERSION_SET([SRD_LIB_VERSION], [3:0:0])

	AM_CONDITIONAL([WIN32], [test -z "${host_os##mingw}" \|\| test -z "${host_os##cygwin}"])

	############################
	## Package dependencies ##
	############################

	# Initialize pkg-config.
	# We require at least 0.22, as "Requires.private" behaviour changed there.
	PKG_PROG_PKG_CONFIG([0.22])

	# Collect the pkg-config module names of all dependencies in SRD_PKGLIBS.
	# These are used to derive the compiler flags and for the "Requires.private"
	# field in the generated libsigrokdecode.pc file.
	SRD_PKGLIBS=
	SRD_PKGLIBS_TESTS=

	# Keep track of all checked modules so we can list them at the end.
	SR_PKG_CHECK_SUMMARY([srd_pkglibs_summary])

	# Python 3 is always needed.
	SR_PKG_CHECK([python3], [SRD_PKGLIBS],
	[python3 >= 3.2], [python-3.6 >= 3.6], [python-3.5 >= 3.5], [python-3.4 >= 3.4], [python-3.3 >= 3.3], [python-3.2 >= 3.2])
	AS_IF([test "x$sr_have_python3" = xno],
	[AC_MSG_ERROR([Cannot find Python 3 development headers.])])

	# We also need to find the name of the python3 executable (for 'make install').
	# Some OSes call this python3, some call it python3.2, etc. etc.
	AC_ARG_VAR([PYTHON3], [Python 3 interpreter])
	AC_CHECK_PROGS([PYTHON3], [python3.6 python3.5 python3.4 python3.3 python3.2 python3])
	AS_IF([test "x$PYTHON3" = x],
	[AC_MSG_ERROR([Cannot find Python 3 interpreter.])])

	######################
	## Feature checks ##
	######################

	# Keep track of all checked modules so we can list them at the end.
	SR_PKG_CHECK_SUMMARY([srd_pkglibs_opt_summary])

	# The Check unit testing framework is optional. Disable if not found.
	SR_PKG_CHECK([check], [SRD_PKGLIBS_TESTS], [check >= 0.9.4])
	AM_CONDITIONAL([HAVE_CHECK], [test "x$sr_have_check" = xyes])

	# Enable the C99 standard if possible, and enforce the use
	# of SRD_API to explicitly mark all public API functions.
	SRD_EXTRA_CFLAGS=
	SR_CHECK_COMPILE_FLAGS([SRD_EXTRA_CFLAGS], [C99], [-std=c99 -c99 -AC99 -qlanglvl=extc99])
	SR_CHECK_COMPILE_FLAGS([SRD_EXTRA_CFLAGS], [visibility], [-fvisibility=hidden])

	# Select suitable compiler warning flags.
	SR_ARG_ENABLE_WARNINGS([SRD_WFLAGS], [-Wall], [-Wall -Wextra -Wmissing-prototypes])

	# Link against libm, this is required (among other things) by Python.
	SRD_EXTRA_LIBS=
	SR_SEARCH_LIBS([SRD_EXTRA_LIBS], [pow], [m])

	AC_SYS_LARGEFILE

	##############################
	## Finalize configuration ##
	##############################

	AC_SUBST([SRD_PKGLIBS])

	# Retrieve the compile and link flags for all modules combined.
	# Also, bail out at this point if any module dependency is not met.
	PKG_CHECK_MODULES([LIBSIGROKDECODE], [glib-2.0 >= 2.28.0 $SRD_PKGLIBS])
	PKG_CHECK_MODULES([TESTS], [$SRD_PKGLIBS_TESTS glib-2.0 $SRD_PKGLIBS])

	srd_glib_version=`$PKG_CONFIG --modversion glib-2.0 2>&AS_MESSAGE_LOG_FD`

	AC_CONFIG_FILES([Makefile libsigrokdecode.pc])

	AC_OUTPUT

	cat >&AS_MESSAGE_FD <<_EOF

	libsigrokdecode configuration summary:
	- Package version................. $SRD_PACKAGE_VERSION
	- Library ABI version............. $SRD_LIB_VERSION
	- Prefix.......................... $prefix
	- Building on..................... $build
	- Building for.................... $host
	- Building shared / static........ $enable_shared / $enable_static

	Compile configuration:
	- C compiler...................... $CC
	- C compiler version.............. $srd_cc_version
	- C compiler flags................ $CFLAGS
	- Additional C compiler flags..... $SRD_EXTRA_CFLAGS
	- C compiler warnings............. $SRD_WFLAGS
	- Linker flags.................... $LDFLAGS

	Detected libraries (required):
	- glib-2.0 >= 2.28.0.............. $srd_glib_version
	$srd_pkglibs_summary
	Detected libraries (optional):
	$srd_pkglibs_opt_summary
	_EOF