]> sigrok.org Git - libsigrokdecode.git/blobdiff - configure.ac
configure.ac: Only check for things we actually use.
[libsigrokdecode.git] / configure.ac
index 1cd0a07f7ea91b3642c977d3ff4d3e4610af3bf7..b8171423f4d2960ea1cd27edf1c402fb892b249c 100644 (file)
@@ -1,5 +1,5 @@
 ##
-## This file is part of the sigrok project.
+## This file is part of the libsigrokdecode project.
 ##
 ## Copyright (C) 2010 Bert Vermeulen <bert@biot.com>
 ##
@@ -22,7 +22,7 @@ AC_PREREQ([2.63])
 
 # libsigrokdecode package version number (NOT the same as shared lib version!).
 m4_define([srd_package_version_major], [0])
-m4_define([srd_package_version_minor], [1])
+m4_define([srd_package_version_minor], [2])
 m4_define([srd_package_version_micro], [0])
 m4_define([srd_package_version], [srd_package_version_major.srd_package_version_minor.srd_package_version_micro])
 
@@ -34,7 +34,7 @@ AC_CONFIG_MACRO_DIR([autostuff])
 AC_CONFIG_AUX_DIR([autostuff])
 
 # We require at least automake 1.11 (needed for 'silent rules').
-AM_INIT_AUTOMAKE([1.11 -Wall -Werror foreign std-options])
+AM_INIT_AUTOMAKE([1.11 -Wall -Werror check-news color-tests])
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
 
@@ -42,15 +42,19 @@ AH_TOP([#ifndef SRD_CONFIG_H
 #define SRD_CONFIG_H    /* To stop multiple inclusions. */])
 AH_BOTTOM([#endif /* SRD_CONFIG_H */])
 
-CFLAGS="-g -Wall -Wextra"
+# Enable more compiler warnings via -Wall and -Wextra. Add -fvisibility=hidden
+# and enforce use of SRD_API to explicitly mark all public API functions.
+CFLAGS="$CFLAGS -Wall -Wextra -fvisibility=hidden"
 
 # Checks for programs.
-AC_PROG_CXX
 AC_PROG_CC
 AC_PROG_CPP
 AC_PROG_INSTALL
 AC_PROG_LN_S
 
+# Required for per-target flags or subdir-objects with C sources.
+AM_PROG_CC_C_O
+
 # Initialize libtool.
 LT_INIT
 
@@ -62,7 +66,7 @@ PKG_PROG_PKG_CONFIG([0.22])
 # 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
-SRD_LIB_VERSION_CURRENT=0
+SRD_LIB_VERSION_CURRENT=1
 SRD_LIB_VERSION_REVISION=0
 SRD_LIB_VERSION_AGE=0
 SRD_LIB_VERSION="$SRD_LIB_VERSION_CURRENT:$SRD_LIB_VERSION_REVISION:$SRD_LIB_VERSION_AGE"
@@ -73,62 +77,62 @@ AC_SUBST(SRD_LIB_VERSION_AGE)
 AC_SUBST(SRD_LIB_VERSION)
 AC_SUBST(SRD_LIB_LDFLAGS)
 
+# assume we can build tests/runtc unless proven otherwise
+build_runtc="yes"
+
 # Checks for libraries.
 
 # libglib-2.0 is always needed.
 # Note: glib-2.0 is part of the libsigrokdecode API
 # (hard pkg-config requirement).
-AM_PATH_GLIB_2_0([2.28.0],
+AM_PATH_GLIB_2_0([2.24.0],
         [CFLAGS="$CFLAGS $GLIB_CFLAGS"; LIBS="$LIBS $GLIB_LIBS"])
 
-# Python support. We require at least Python >= 3.0.
-AC_ARG_VAR([PYTHON3_CONFIG], [path to python3-config utility])
-AC_CHECK_PROGS([PYTHON3_CONFIG], [python3-config python3.2-config python3.1-config python3.0-config])
+# Python 3 is always needed.
+# Note: We need to try a few different variants, since some systems have a
+# python3.pc file, others have a python-3.3.pc file, and so on.
+# See also: http://sigrok.org/wiki/Libsigrokdecode/Python
 CPPFLAGS_PYTHON=""
 LDFLAGS_PYTHON=""
-case "$build" in
-*mingw*)
-       # We currently hardcode the paths to the Python 3.2 default install
-       # location as there's no 'python-config' script on Windows, it seems.
-       AC_MSG_WARN([using hardcoded Python3 configuration on MinGW])
-       CPPFLAGS_PYTHON="-I/c/Python32/include"
-       LDFLAGS_PYTHON="-L/c/Python32/libs -lpython32"
-       ;;
-*)
-       # We know that Linux has 'python3-config'.
-       # On Darwin, Macports has python3.x-config, fink has python3-config.
-       # Mac OS X (Snow Leopard) ships with 'python-config' per default, but
-       # that's Python 2.x, so not useful for us.
-       # Everything else is untested, we just hope 'PYTHON3_CONFIG' works.
-       if test -n "$PYTHON3_CONFIG"; then
-               CPPFLAGS_PYTHON="$($PYTHON3_CONFIG --includes)"
-               LDFLAGS_PYTHON="$($PYTHON3_CONFIG --ldflags)"
-       else
-               AC_MSG_ERROR([python3-config not found])
-       fi
-       ;;
-esac
+PKG_CHECK_MODULES([python3], [python3 >= 3.0],
+       [CPPFLAGS_PYTHON="$CPPFLAGS_PYTHON $python3_CFLAGS";
+       LDFLAGS_PYTHON="$LDFLAGS_PYTHON $python3_LIBS"],
+[PKG_CHECK_MODULES([python33], [python-3.3 >= 3.0],
+       [CPPFLAGS_PYTHON="$CPPFLAGS_PYTHON $python33_CFLAGS";
+       LDFLAGS_PYTHON="$LDFLAGS_PYTHON $python33_LIBS"],
+[PKG_CHECK_MODULES([python32], [python-3.2 >= 3.0],
+       [CPPFLAGS_PYTHON="$CPPFLAGS_PYTHON $python32_CFLAGS";
+       LDFLAGS_PYTHON="$LDFLAGS_PYTHON $python32_LIBS"],
+[PKG_CHECK_MODULES([python31], [python-3.1 >= 3.0],
+       [CPPFLAGS_PYTHON="$CPPFLAGS_PYTHON $python31_CFLAGS";
+       LDFLAGS_PYTHON="$LDFLAGS_PYTHON $python31_LIBS"],
+[PKG_CHECK_MODULES([python30], [python-3.0 >= 3.0],
+       [CPPFLAGS_PYTHON="$CPPFLAGS_PYTHON $python30_CFLAGS";
+       LDFLAGS_PYTHON="$LDFLAGS_PYTHON $python30_LIBS"],
+)])])])])
 AC_SUBST(CPPFLAGS_PYTHON)
 AC_SUBST(LDFLAGS_PYTHON)
 
+# Link against libm, this is required (among other things) by Python.
+AC_SEARCH_LIBS([pow], [m])
+
+# The Check unit testing framework is optional. Disable if not found.
+PKG_CHECK_MODULES([check], [check >= 0.9.4],
+       [have_check="yes"; CFLAGS="$CFLAGS $check_CFLAGS";
+       LIBS="$LIBS $check_LIBS"], [have_check="no"])
+AM_CONDITIONAL(HAVE_CHECK, test x"$have_check" = "xyes")
+
+# libsigrok is optional (only used for the protocol decoder test framework).
+# Disable if not found.
+PKG_CHECK_MODULES([libsigrok], [libsigrok >= 0.2.0],
+       [LIBSIGROK_CFLAGS="$libsigrok_CFLAGS"; LIBSIGROK_LIBS="$libsigrok_LIBS"],
+       [build_runtc="no"])
+AC_SUBST([LIBSIGROK_CFLAGS])
+AC_SUBST([LIBSIGROK_LIBS])
+
 # Checks for header files.
 # These are already checked: inttypes.h stdint.h stdlib.h string.h unistd.h.
-# AC_CHECK_HEADERS([])
-
-# Checks for typedefs, structures, and compiler characteristics.
-AC_C_INLINE
-AC_TYPE_INT8_T
-AC_TYPE_INT16_T
-AC_TYPE_INT32_T
-AC_TYPE_INT64_T
-AC_TYPE_UINT8_T
-AC_TYPE_UINT16_T
-AC_TYPE_UINT32_T
-AC_TYPE_UINT64_T
-AC_TYPE_SIZE_T
-
-# Checks for library functions.
-AC_CHECK_FUNCS([memset strtoull])
+AC_CHECK_HEADER([sys/resource.h], [], [build_runtc="no"])
 
 AC_SUBST(DECODERS_DIR, "$datadir/libsigrokdecode/decoders")
 AC_SUBST(MAKEFLAGS, '--no-print-directory')
@@ -144,37 +148,13 @@ AC_SUBST(SRD_PACKAGE_VERSION_MINOR)
 AC_SUBST(SRD_PACKAGE_VERSION_MICRO)
 AC_SUBST(SRD_PACKAGE_VERSION)
 
+AM_CONDITIONAL(BUILD_RUNTC, test x"$build_runtc" = "xyes")
+
 AC_CONFIG_FILES([Makefile
-                sigrokdecode.h
+                version.h
                 libsigrokdecode.pc
-                decoders/Makefile
-                decoders/avr_isp/Makefile
-                decoders/dcf77/Makefile
-                decoders/edid/Makefile
-                decoders/i2c/Makefile
-                decoders/i2cdemux/Makefile
-                decoders/i2cfilter/Makefile
-                decoders/i2s/Makefile
-                decoders/jtag/Makefile
-                decoders/jtag_stm32/Makefile
-                decoders/lm75/Makefile
-                decoders/lpc/Makefile
-                decoders/mlx90614/Makefile
-                decoders/mx25lxx05d/Makefile
-                decoders/mxc6225xu/Makefile
-                decoders/nunchuk/Makefile
-                decoders/pan1321/Makefile
-                decoders/rtc8564/Makefile
-                decoders/sdcard_spi/Makefile
-                decoders/spi/Makefile
-                decoders/transitioncounter/Makefile
-                decoders/uart/Makefile
-                decoders/uart_dump/Makefile
-                decoders/usb_signalling/Makefile
-                decoders/usb_protocol/Makefile
-                decoders/onewire_link/Makefile
-                decoders/onewire_network/Makefile
-                decoders/maxim_ds28ea00/Makefile
+                contrib/Makefile
+                tests/Makefile
                ])
 
 AC_OUTPUT
@@ -185,12 +165,15 @@ echo
 echo "  - Package version (major.minor.micro):    $SRD_PACKAGE_VERSION"
 echo "  - Library version (current:revision:age): $SRD_LIB_VERSION"
 echo "  - Prefix: $prefix"
+echo "  - Building on: $build"
+echo "  - Building for: $host"
+echo "  - Building protocol decoder test framework: $build_runtc"
 echo
 echo "Detected libraries:"
 echo
 
 # Note: This only works for libs with pkg-config integration.
-for lib in "glib-2.0"; do
+for lib in "glib-2.0 >= 2.24.0" "check >= 0.9.4" "libsigrok >= 0.2.0"; do
         if `$PKG_CONFIG --exists $lib`; then
                 ver=`$PKG_CONFIG --modversion $lib`
                 answer="yes ($ver)"