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1 | ## | |
2 | ## This file is part of the libsigrokdecode project. | |
3 | ## | |
4 | ## Copyright (C) 2010 Bert Vermeulen <bert@biot.com> | |
5 | ## | |
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. | |
10 | ## | |
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. | |
15 | ## | |
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/>. | |
18 | ## | |
19 | ||
20 | # We require at least autoconf 2.63 (AC_INIT format changed there). | |
21 | AC_PREREQ([2.63]) | |
22 | ||
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]) | |
30 | ||
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]) | |
35 | ||
36 | AH_TOP([#ifndef SRD_CONFIG_H | |
37 | #define SRD_CONFIG_H /* To stop multiple inclusions. */]) | |
38 | AH_BOTTOM([#endif /* SRD_CONFIG_H */]) | |
39 | ||
40 | AC_CANONICAL_HOST | |
41 | ||
42 | # Checks for programs. | |
43 | AC_PROG_CC | |
44 | AC_PROG_INSTALL | |
45 | AC_PROG_LN_S | |
46 | ||
47 | # Required for per-target flags or subdir-objects with C sources. | |
48 | AM_PROG_CC_C_O | |
49 | ||
50 | # Get compiler versions. | |
51 | SR_PROG_VERSION([$CC], [srd_cc_version]) | |
52 | ||
53 | # Initialize libtool. | |
54 | LT_INIT | |
55 | ||
56 | # Set up the libsigrokdecode version defines. | |
57 | SR_PKG_VERSION_SET([SRD_PACKAGE_VERSION], [AC_PACKAGE_VERSION]) | |
58 | ||
59 | # Library version for libsigrokdecode (NOT the same as the package version). | |
60 | # Carefully read the libtool docs before updating these numbers! | |
61 | # The algorithm for determining which number to change (and how) is nontrivial! | |
62 | # http://www.gnu.org/software/libtool/manual/libtool.html#Updating-version-info | |
63 | SR_LIB_VERSION_SET([SRD_LIB_VERSION], [2:0:0]) | |
64 | ||
65 | ############################ | |
66 | ## Package dependencies ## | |
67 | ############################ | |
68 | ||
69 | # Initialize pkg-config. | |
70 | # We require at least 0.22, as "Requires.private" behaviour changed there. | |
71 | PKG_PROG_PKG_CONFIG([0.22]) | |
72 | ||
73 | # Collect the pkg-config module names of all dependencies in SRD_PKGLIBS. | |
74 | # These are used to derive the compiler flags and for the "Requires.private" | |
75 | # field in the generated libsigrokdecode.pc file. | |
76 | SRD_PKGLIBS= | |
77 | SRD_PKGLIBS_TESTS= | |
78 | ||
79 | # Keep track of all checked modules so we can list them at the end. | |
80 | SR_PKG_CHECK_SUMMARY([srd_pkglibs_summary]) | |
81 | ||
82 | # Python 3 is always needed. | |
83 | SR_PKG_CHECK([python3], [SRD_PKGLIBS], | |
84 | [python3 >= 3.2], [python-3.4 >= 3.4], [python-3.3 >= 3.3], [python-3.2 >= 3.2]) | |
85 | AS_IF([test "x$sr_have_python3" = xno], | |
86 | [AC_MSG_ERROR([Cannot find Python 3 development headers.])]) | |
87 | ||
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$PYTHON3" = x], | |
93 | [AC_MSG_ERROR([Cannot find Python 3 interpreter.])]) | |
94 | ||
95 | ###################### | |
96 | ## Feature checks ## | |
97 | ###################### | |
98 | ||
99 | # Keep track of all checked modules so we can list them at the end. | |
100 | SR_PKG_CHECK_SUMMARY([srd_pkglibs_opt_summary]) | |
101 | ||
102 | # The Check unit testing framework is optional. Disable if not found. | |
103 | SR_PKG_CHECK([check], [SRD_PKGLIBS_TESTS], [check >= 0.9.4]) | |
104 | AM_CONDITIONAL([HAVE_CHECK], [test "x$sr_have_check" = xyes]) | |
105 | ||
106 | # Enable the C99 standard if possible, and enforce the use | |
107 | # of SRD_API to explicitly mark all public API functions. | |
108 | SRD_EXTRA_CFLAGS= | |
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]) | |
111 | ||
112 | # Select suitable compiler warning flags. | |
113 | SR_ARG_ENABLE_WARNINGS([SRD_WFLAGS], [-Wall], [-Wall -Wextra -Wmissing-prototypes]) | |
114 | ||
115 | # Link against libm, this is required (among other things) by Python. | |
116 | SRD_EXTRA_LIBS= | |
117 | SR_SEARCH_LIBS([SRD_EXTRA_LIBS], [pow], [m]) | |
118 | ||
119 | AC_SYS_LARGEFILE | |
120 | ||
121 | ############################## | |
122 | ## Finalize configuration ## | |
123 | ############################## | |
124 | ||
125 | AC_SUBST([SRD_PKGLIBS]) | |
126 | ||
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 $SRD_PKGLIBS]) | |
131 | ||
132 | srd_glib_version=`$PKG_CONFIG --modversion glib-2.0 2>&AS_MESSAGE_LOG_FD` | |
133 | ||
134 | AC_CONFIG_FILES([Makefile libsigrokdecode.pc]) | |
135 | ||
136 | AC_OUTPUT | |
137 | ||
138 | cat >&AS_MESSAGE_FD <<_EOF | |
139 | ||
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 | |
146 | ||
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 | |
153 | ||
154 | Detected libraries (required): | |
155 | - glib-2.0 >= 2.24.0.............. $srd_glib_version | |
156 | $srd_pkglibs_summary | |
157 | Detected libraries (optional): | |
158 | $srd_pkglibs_opt_summary | |
159 | _EOF |