basic android abb works, distcheck fails; refs #24

ax_init_standard_project.m4

@@ -131,7 +131,7 @@ AC_DEFUN([AX_INIT_STANDARD_PROJECT], [
   AX_SUBST(DISTRO)
   BUILD_NUMBER=${BUILD_NUMBER:-1}
   AX_SUBST(BUILD_NUMBER)
-  BUILD_DATE=$(LANG= date +"%a, %d %B %Y %H:%M:%S %z")
+  BUILD_DATE=$(LANG= date +"%a, %d %b %Y %H:%M:%S %z")
   AX_SUBST(BUILD_DATE)
   if test -f "${PROJECT_NAME}-logo.png"; then
      PROJECT_LOGO="${PROJECT_NAME}-logo.png"
@@ -160,9 +160,10 @@ AC_DEFUN([AX_INIT_STANDARD_PROJECT], [
   AX_ADD_MAKEFILE_TARGET_DEP([clean-am], [clean-standard-project-targets], [makefile.in])
   AX_ADD_MAKEFILE_TARGET_DEP([distclean-am], [distclean-standard-project-targets], [makefile.in])
   AX_ADD_MAKEFILE_TARGET_DEP([maintainer-clean-am], [maintainer-clean-standard-project-targets], [makefile.in])
+  test -f makefile.in && sed -i '1iEXTRA_DIST = ' makefile.in
   test -f makefile.in && cat >> makefile.in <<EOF
 #### Begin: Appended by $0
-EXTRA_DIST = bootstrap.sh
+EXTRA_DIST += bootstrap.sh
 clean-standard-project-targets:
 	-rm -rf \${PACKAGE_NAME}-\${PACKAGE_VERSION}
 	-rm \${PACKAGE_TARNAME}-\${PACKAGE_VERSION}.tar.gz
@@ -430,7 +431,7 @@ AC_DEFUN([AX_PKG_REQUIRE], [
     ], [
       for x in ${$1_CFLAGS}; do
         AC_MSG_NOTICE([search for $3 in ${x[#]-I}])
-        for f in $(find ${x[#]-I} -name "$3"); do
+        for f in $(find ${x[#]-I} -name "$3" 2> /dev/null); do
           if test -f "$f"; then
             $1_found=${tmp_package}
             $1_CFLAGS+=" -I${f%/*}"
@@ -446,7 +447,7 @@ AC_DEFUN([AX_PKG_REQUIRE], [
         tmp_includedir=$(${PKG_CONFIG} --variable=includedir $tmp_package)
         for x in ${tmp_includedir}; do
           AC_MSG_NOTICE([search for $3 in $x])
-          for f in $(find ${x} -name "$3"); do
+          for f in $(find ${x} -name "$3" 2> /dev/null); do
             if test -f "$f"; then
               $1_found=${tmp_package}
               $1_CFLAGS+=" -I${f%/*}"
@@ -501,7 +502,7 @@ AC_DEFUN([AX_PKG_CHECK], [
   ], [
     HAVE_$1=0
   ])
-  AM_CONDITIONAL(HAVE_$1, test $HAVE_$1 -eq 1)
+  AM_CONDITIONAL(HAVE_$1, test $HAVE_[$1] -eq 1)
   AC_SUBST(HAVE_$1)
   AC_SUBST(CPPFLAGS)
   AC_SUBST(CXXFLAGS)
@@ -532,3 +533,95 @@ AC_DEFUN([AX_REQUIRE_HEADER], [
     ], [])
   ], [])
 ])
+
+# Check within a list of CPP-Flags for the first that is usable and
+# configure it
+#  - parameter:
+#     $1 = white-space separated list of alternative flags
+#     $2 = module name (optional, if different from id)
+AC_DEFUN([AX_CHECK_VALID_CPP_FLAG], [
+  AC_MSG_CHECKING([m4_default([$2], [for valid flag in "$1"])])
+  save_cppflags="$CPPFLAGS"
+  newflag="no"
+  for test_flag in $1; do
+    CPPFLAGS+=" ${test_flag}"
+    AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
+      newflag="$test_flag"
+      CPPFLAGS="$save_cppflags"
+      CPPFLAGS+=" ${test_flag}"
+      break;
+    ])
+    CPPFLAGS="$save_cppflags"
+  done
+  AC_SUBST(CPPFLAGS)
+  AC_MSG_RESULT([$newflag in $CPPFLAGS])
+])
+
+# Check within a list of CXX-Flags for the first that is usable and
+# configure it
+#  - parameter:
+#     $1 = white-space separated list of alternative flags
+#     $2 = module name (optional, if different from id)
+AC_DEFUN([AX_CHECK_VALID_CXX_FLAG], [
+  AC_MSG_CHECKING([m4_default([$2], [for valid flag in "$1"])])
+  save_cxxflags="$CXXFLAGS"
+  newflag="no"
+  for test_flag in $1; do
+    CXXFLAGS+=" ${test_flag}"
+    AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
+      newflag="$test_flag"
+      CXXFLAGS="$save_cxxflags"
+      CXXFLAGS+=" ${test_flag}"
+      break;
+    ])
+    CXXFLAGS="$save_cxxflags"
+  done
+  AC_SUBST(CXXFLAGS)
+  AC_MSG_RESULT([$newflag in $CXXFLAGS])
+])
+
+# Check within a list of C-Flags for the first that is usable and
+# configure it
+#  - parameter:
+#     $1 = white-space separated list of alternative flags
+#     $2 = module name (optional, if different from id)
+AC_DEFUN([AX_CHECK_VALID_C_FLAG], [
+  AC_MSG_CHECKING([m4_default([$2], [for valid flag in "$1"])])
+  save_cflags="$CFLAGS"
+  newflag="no"
+  for test_flag in $1; do
+    CFLAGS+=" ${test_flag}"
+    AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
+      newflag="$test_flag"
+      CFLAGS="$save_cflags"
+      CFLAGS+=" ${test_flag}"
+      break;
+    ])
+    CFLAGS="$save_cflags"
+  done
+  AC_SUBST(CFLAGS)
+  AC_MSG_RESULT([$newflag in $CFLAGS])
+])
+
+# Check within a list of LD-Flags for the first that is usable and
+# configure it
+#  - parameter:
+#     $1 = white-space separated list of alternative flags
+#     $2 = module name (optional, if different from id)
+AC_DEFUN([AX_CHECK_VALID_LD_FLAG], [
+  AC_MSG_CHECKING([m4_default([$2], [for valid flag in "$1"])])
+  save_ldflags="$LDFLAGS"
+  newflag="no"
+  for test_flag in $1; do
+    LDFLAGS+=" ${test_flag}"
+    AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
+      newflag="$test_flag"
+      LDFLAGS="$save_ldflags"
+      LDFLAGS+=" ${test_flag}"
+      break;
+    ])
+    LDFLAGS="$save_ldflags"
+  done
+  AC_SUBST(LDFLAGS)
+  AC_MSG_RESULT([$newflag in $LDFLAGS])
+])