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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], [0.6.0], | |
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 | AC_CANONICAL_HOST | |
37 | ||
38 | # Checks for programs. | |
39 | AC_PROG_CC | |
40 | AC_PROG_INSTALL | |
41 | AC_PROG_LN_S | |
42 | ||
43 | # Required for per-target flags or subdir-objects with C sources. | |
44 | AM_PROG_CC_C_O | |
45 | ||
46 | # Set the standard the C library headers should conform to. | |
47 | AH_VERBATIM([_POSIX_C_SOURCE], [/* The targeted POSIX standard. */ | |
48 | #ifndef _POSIX_C_SOURCE | |
49 | # define _POSIX_C_SOURCE 200112L | |
50 | #endif]) | |
51 | ||
52 | # Get compiler versions. | |
53 | SR_PROG_VERSION([$CC], [srd_cc_version]) | |
54 | ||
55 | # Initialize libtool. | |
56 | LT_INIT | |
57 | ||
58 | # Set up the libsigrokdecode version defines. | |
59 | SR_PKG_VERSION_SET([SRD_PACKAGE_VERSION], [AC_PACKAGE_VERSION]) | |
60 | ||
61 | # Library version for libsigrokdecode (NOT the same as the package version). | |
62 | # Carefully read the libtool docs before updating these numbers! | |
63 | # The algorithm for determining which number to change (and how) is nontrivial! | |
64 | # http://www.gnu.org/software/libtool/manual/libtool.html#Updating-version-info | |
65 | # Format: current:revision:age. | |
66 | SR_LIB_VERSION_SET([SRD_LIB_VERSION], [4:0:0]) | |
67 | ||
68 | AM_CONDITIONAL([WIN32], [test -z "${host_os##mingw*}" || test -z "${host_os##cygwin*}"]) | |
69 | ||
70 | # Initialize pkg-config. | |
71 | # We require at least 0.22, as "Requires.private" behaviour changed there. | |
72 | PKG_PROG_PKG_CONFIG | |
73 | ||
74 | ############################ | |
75 | ## Package dependencies ## | |
76 | ############################ | |
77 | ||
78 | # Initialize pkg-config. | |
79 | # We require at least 0.22, as "Requires.private" behaviour changed there. | |
80 | PKG_PROG_PKG_CONFIG([0.22]) | |
81 | ||
82 | # Collect the pkg-config module names of all dependencies in SRD_PKGLIBS. | |
83 | # These are used to derive the compiler flags and for the "Requires.private" | |
84 | # field in the generated libsigrokdecode.pc file. | |
85 | SRD_PKGLIBS= | |
86 | SRD_PKGLIBS_TESTS= | |
87 | ||
88 | # Keep track of all checked modules so we can list them at the end. | |
89 | SR_PKG_CHECK_SUMMARY([srd_pkglibs_summary]) | |
90 | ||
91 | # Python 3 is always needed. | |
92 | SR_PKG_CHECK([python3], [SRD_PKGLIBS], | |
93 | [python3 >= 3.2], [python-3.6 >= 3.6], [python-3.5 >= 3.5], [python-3.4 >= 3.4], [python-3.3 >= 3.3], [python-3.2 >= 3.2]) | |
94 | AS_IF([test "x$sr_have_python3" = xno], | |
95 | [AC_MSG_ERROR([Cannot find Python 3 development headers.])]) | |
96 | ||
97 | # We also need to find the name of the python3 executable (for 'make install'). | |
98 | # Some OSes call this python3, some call it python3.2, etc. etc. | |
99 | AC_ARG_VAR([PYTHON3], [Python 3 interpreter]) | |
100 | AC_CHECK_PROGS([PYTHON3], [python3.6 python3.5 python3.4 python3.3 python3.2 python3]) | |
101 | AS_IF([test "x$PYTHON3" = x], | |
102 | [AC_MSG_ERROR([Cannot find Python 3 interpreter.])]) | |
103 | ||
104 | ###################### | |
105 | ## Feature checks ## | |
106 | ###################### | |
107 | ||
108 | # Keep track of all checked modules so we can list them at the end. | |
109 | SR_PKG_CHECK_SUMMARY([srd_pkglibs_opt_summary]) | |
110 | ||
111 | # The Check unit testing framework is optional. Disable if not found. | |
112 | SR_PKG_CHECK([check], [SRD_PKGLIBS_TESTS], [check >= 0.9.4]) | |
113 | AM_CONDITIONAL([HAVE_CHECK], [test "x$sr_have_check" = xyes]) | |
114 | ||
115 | # Enable the C99 standard if possible, and enforce the use | |
116 | # of SRD_API to explicitly mark all public API functions. | |
117 | SRD_EXTRA_CFLAGS= | |
118 | SR_CHECK_COMPILE_FLAGS([SRD_EXTRA_CFLAGS], [C99], [-std=c99 -c99 -AC99 -qlanglvl=extc99]) | |
119 | SR_CHECK_COMPILE_FLAGS([SRD_EXTRA_CFLAGS], [visibility], [-fvisibility=hidden]) | |
120 | ||
121 | # Select suitable compiler warning flags. | |
122 | SR_ARG_ENABLE_WARNINGS([SRD_WFLAGS], [-Wall], [-Wall -Wextra -Wmissing-prototypes -Wshadow -Wformat=2 -Wno-format-nonliteral -Wfloat-equal]) | |
123 | ||
124 | # Link against libm, this is required (among other things) by Python. | |
125 | SRD_EXTRA_LIBS= | |
126 | SR_SEARCH_LIBS([SRD_EXTRA_LIBS], [pow], [m]) | |
127 | ||
128 | AC_SYS_LARGEFILE | |
129 | ||
130 | AC_C_BIGENDIAN | |
131 | ||
132 | ############################## | |
133 | ## Finalize configuration ## | |
134 | ############################## | |
135 | ||
136 | AC_SUBST([SRD_PKGLIBS]) | |
137 | ||
138 | # Retrieve the compile and link flags for all modules combined. | |
139 | # Also, bail out at this point if any module dependency is not met. | |
140 | PKG_CHECK_MODULES([LIBSIGROKDECODE], [glib-2.0 >= 2.34 $SRD_PKGLIBS]) | |
141 | PKG_CHECK_MODULES([TESTS], [$SRD_PKGLIBS_TESTS glib-2.0 $SRD_PKGLIBS]) | |
142 | ||
143 | srd_glib_version=`$PKG_CONFIG --modversion glib-2.0 2>&AS_MESSAGE_LOG_FD` | |
144 | ||
145 | AC_DEFINE_UNQUOTED([CONF_HOST], ["$host"], | |
146 | [The canonical host libsigrokdecode will run on.]) | |
147 | ||
148 | AC_CONFIG_FILES([Makefile libsigrokdecode.pc]) | |
149 | ||
150 | AC_OUTPUT | |
151 | ||
152 | cat >&AS_MESSAGE_FD <<_EOF | |
153 | ||
154 | libsigrokdecode configuration summary: | |
155 | - Package version................. $SRD_PACKAGE_VERSION | |
156 | - Library ABI version............. $SRD_LIB_VERSION | |
157 | - Prefix.......................... $prefix | |
158 | - Building on..................... $build | |
159 | - Building for.................... $host | |
160 | - Building shared / static........ $enable_shared / $enable_static | |
161 | ||
162 | Compile configuration: | |
163 | - C compiler...................... $CC | |
164 | - C compiler version.............. $srd_cc_version | |
165 | - C compiler flags................ $CFLAGS | |
166 | - Additional C compiler flags..... $SRD_EXTRA_CFLAGS | |
167 | - C compiler warnings............. $SRD_WFLAGS | |
168 | - Linker flags.................... $LDFLAGS | |
169 | ||
170 | Detected libraries (required): | |
171 | - glib-2.0 >= 2.34................ $srd_glib_version | |
172 | $srd_pkglibs_summary | |
173 | Detected libraries (optional): | |
174 | $srd_pkglibs_opt_summary | |
175 | _EOF |