# 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="$CFLAGS -Wall -Wextra -fvisibility=hidden"
+CFLAGS="$CFLAGS -Wall -Wextra -Wmissing-prototypes -fvisibility=hidden"
# Checks for programs.
AC_PROG_CC
AM_PATH_GLIB_2_0([2.24.0],
[CFLAGS="$CFLAGS $GLIB_CFLAGS"; LIBS="$LIBS $GLIB_LIBS"])
-# Python support. We require at least Python >= 3.0.
+# Python 3 is always needed.
+# Note: We need to try a few different variants, since some systems have a
+# python3.pc file, others have a python-3.3.pc file, and so on.
+# See also: http://sigrok.org/wiki/Libsigrokdecode/Python
CPPFLAGS_PYTHON=""
LDFLAGS_PYTHON=""
PKG_CHECK_MODULES([python3], [python3 >= 3.0],
- [have_python3="yes"; CPPFLAGS_PYTHON="$python3_CFLAGS";
- LDFLAGS_PYTHON="$python3_LIBS"], [have_python3="no"])
-case "$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.
- # Note: We add both the /c/ and c:/ syntax (needed for cmake).
- AC_MSG_WARN([using hardcoded Python3 configuration on MinGW])
- CPPFLAGS_PYTHON="-I/c/Python32/include -Ic:/Python32/include"
- LDFLAGS_PYTHON="-L/c/Python32/libs -Lc:/Python32/libs -lpython32"
- ;;
-*)
- if test x"$have_python3" = xno; then
- AC_MSG_ERROR([python3 not found])
- fi
- ;;
-esac
+ [CPPFLAGS_PYTHON="$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")
-# Protocol decoder test framework
+# 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"])
# These are already checked: inttypes.h stdint.h stdlib.h string.h unistd.h.
AC_CHECK_HEADER([sys/resource.h], [], [build_runtc="no"])
-# 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_SUBST(DECODERS_DIR, "$datadir/libsigrokdecode/decoders")
AC_SUBST(MAKEFLAGS, '--no-print-directory')
AC_SUBST(AM_LIBTOOLFLAGS, '--silent')