2 ## This file is part of the libsigrokdecode project.
4 ## Copyright (C) 2010 Bert Vermeulen <bert@biot.com>
6 ## This program is free software: you can redistribute it and/or modify
7 ## it under the terms of the GNU General Public License as published by
8 ## the Free Software Foundation, either version 3 of the License, or
9 ## (at your option) any later version.
11 ## This program is distributed in the hope that it will be useful,
12 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 ## GNU General Public License for more details.
16 ## You should have received a copy of the GNU General Public License
17 ## along with this program. If not, see <http://www.gnu.org/licenses/>.
20 # We require at least autoconf 2.63 (AC_INIT format changed there).
23 # libsigrokdecode package version number (NOT the same as shared lib version!).
24 AC_INIT([libsigrokdecode], [0.4.0],
25 [sigrok-devel@lists.sourceforge.net], [libsigrokdecode],
26 [http://www.sigrok.org])
27 AC_CONFIG_MACRO_DIR([m4])
28 AC_CONFIG_AUX_DIR([autostuff])
29 AC_CONFIG_HEADERS([config.h version.h])
31 # We require at least automake 1.11 (needed for 'silent rules').
32 AM_INIT_AUTOMAKE([1.11 -Wall -Werror no-define subdir-objects check-news color-tests])
33 AM_SILENT_RULES([yes])
34 m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
36 AH_TOP([#ifndef SRD_CONFIG_H
37 #define SRD_CONFIG_H /* To stop multiple inclusions. */])
38 AH_BOTTOM([#endif /* SRD_CONFIG_H */])
42 # Checks for programs.
47 # Required for per-target flags or subdir-objects with C sources.
50 # Get compiler versions.
51 SR_PROG_VERSION([$CC], [srd_cc_version])
56 # Set up the libsigrokdecode version defines.
57 SR_PKG_VERSION_SET([SRD_PACKAGE_VERSION], [AC_PACKAGE_VERSION])
59 # Library version for libsigrokdecode (NOT the same as the package version).
60 # Carefully read the libtool docs before updating these numbers!
61 # The algorithm for determining which number to change (and how) is nontrivial!
62 # http://www.gnu.org/software/libtool/manual/libtool.html#Updating-version-info
63 SR_LIB_VERSION_SET([SRD_LIB_VERSION], [2:0:0])
65 ############################
66 ## Package dependencies ##
67 ############################
69 # Initialize pkg-config.
70 # We require at least 0.22, as "Requires.private" behaviour changed there.
71 PKG_PROG_PKG_CONFIG([0.22])
73 # Collect the pkg-config module names of all dependencies in SRD_PKGLIBS.
74 # These are used to derive the compiler flags and for the "Requires.private"
75 # field in the generated libsigrokdecode.pc file.
79 # Keep track of all checked modules so we can list them at the end.
80 SR_PKG_CHECK_SUMMARY([srd_pkglibs_summary])
82 # Python 3 is always needed.
83 SR_PKG_CHECK([python3], [SRD_PKGLIBS],
84 [python3 >= 3.2], [python-3.4 >= 3.4], [python-3.3 >= 3.3], [python-3.2 >= 3.2])
85 AS_IF([test "x$sr_have_python3" = xno],
86 [AC_MSG_ERROR([Cannot find Python 3 development headers.])])
88 # We also need to find the name of the python3 executable (for 'make install').
89 # Some OSes call this python3, some call it python3.2, etc. etc.
90 AC_ARG_VAR([PYTHON3], [Python 3 interpreter])
91 AC_CHECK_PROGS([PYTHON3], [python3.4 python3.3 python3.2 python3])
92 AS_IF([test "x$PYTHON3" = x],
93 [AC_MSG_ERROR([Cannot find Python 3 interpreter.])])
95 ######################
97 ######################
99 # Keep track of all checked modules so we can list them at the end.
100 SR_PKG_CHECK_SUMMARY([srd_pkglibs_opt_summary])
102 # The Check unit testing framework is optional. Disable if not found.
103 SR_PKG_CHECK([check], [SRD_PKGLIBS_TESTS], [check >= 0.9.4])
104 AM_CONDITIONAL([HAVE_CHECK], [test "x$sr_have_check" = xyes])
106 # Enable the C99 standard if possible, and enforce the use
107 # of SRD_API to explicitly mark all public API functions.
109 SR_CHECK_COMPILE_FLAGS([SRD_EXTRA_CFLAGS], [C99], [-std=c99 -c99 -AC99 -qlanglvl=extc99])
110 SR_CHECK_COMPILE_FLAGS([SRD_EXTRA_CFLAGS], [visibility], [-fvisibility=hidden])
112 # Select suitable compiler warning flags.
113 SR_ARG_ENABLE_WARNINGS([SRD_WFLAGS], [-Wall], [-Wall -Wextra -Wmissing-prototypes])
115 # Link against libm, this is required (among other things) by Python.
117 SR_SEARCH_LIBS([SRD_EXTRA_LIBS], [pow], [m])
121 ##############################
122 ## Finalize configuration ##
123 ##############################
125 AC_SUBST([SRD_PKGLIBS])
127 # Retrieve the compile and link flags for all modules combined.
128 # Also, bail out at this point if any module dependency is not met.
129 PKG_CHECK_MODULES([LIBSIGROKDECODE], [glib-2.0 >= 2.24.0 $SRD_PKGLIBS])
130 PKG_CHECK_MODULES([TESTS], [$SRD_PKGLIBS_TESTS glib-2.0 $SRD_PKGLIBS])
132 srd_glib_version=`$PKG_CONFIG --modversion glib-2.0 2>&AS_MESSAGE_LOG_FD`
134 AC_CONFIG_FILES([Makefile libsigrokdecode.pc])
138 cat >&AS_MESSAGE_FD <<_EOF
140 libsigrokdecode configuration summary:
141 - Package version................. $SRD_PACKAGE_VERSION
142 - Library ABI version............. $SRD_LIB_VERSION
143 - Prefix.......................... $prefix
144 - Building on..................... $build
145 - Building for.................... $host
147 Compile configuration:
148 - C compiler...................... $CC
149 - C compiler version.............. $srd_cc_version
150 - C compiler flags................ $CFLAGS
151 - Additional C compiler flags..... $SRD_EXTRA_CFLAGS
152 - C compiler warnings............. $SRD_WFLAGS
154 Detected libraries (required):
155 - glib-2.0 >= 2.24.0.............. $srd_glib_version
157 Detected libraries (optional):
158 $srd_pkglibs_opt_summary