Lower glib-2.0 requirement to 2.24.0.

[libsigrokdecode.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index a5335a5479be44ec45091a855f7a710b7168a034..444b631f806eb3d745c2926d0b35776dd525fc62 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -42,7 +42,9 @@ 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
@@ -78,7 +80,7 @@ AC_SUBST(SRD_LIB_LDFLAGS)
 # 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.
@@ -100,7 +102,8 @@ case "$build" in
        # 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.
+       # Everything else is untested, we just hope some $PYTHON3_CONFIG
+       # (i.e., any of the tools we check for above) is available.
        if test -n "$PYTHON3_CONFIG"; then
                CPPFLAGS_PYTHON="$($PYTHON3_CONFIG --includes)"
                LDFLAGS_PYTHON="$($PYTHON3_CONFIG --ldflags)"