configure: remove check on CXX compiler

[thirdparty/lldpd.git] / autogen.sh

diff --git a/autogen.sh b/autogen.sh
index 32b793a1a547900c58d2a982ef2a224bcbfc72fb..f58af72f6b5ca67b37fc5e1bdcae362208fc99bd 100755 (executable)
--- a/autogen.sh
+++ b/autogen.sh
@@ -2,25 +2,84 @@
 
 set -e
 
-[ ! -d .gitmodules ] || {
+[ ! -e .gitmodules ] || [ ! -e .git ] || {
     echo "autogen.sh: updating git submodules"
     git submodule init
     git submodule update
 }
 
+case "$(uname)" in
+    Darwin)
+        LIBTOOLIZE=${LIBTOOLIZE:-glibtoolize}
+        ;;
+    *)
+        LIBTOOLIZE=${LIBTOOLIZE:-libtoolize}
+        ;;
+esac
+AUTORECONF=${AUTORECONF:-autoreconf}
+ACLOCAL=${ACLOCAL:-aclocal}
+AUTOCONF=${AUTOCONF:-autoconf}
+AUTOHEADER=${AUTOHEADER:-autoheader}
+AUTOMAKE=${AUTOMAKE:-automake}
+
+# Check we have all tools installed
+check_command() {
+    command -v "${1}" > /dev/null 2>&1 || {
+        >&2 echo "autogen.sh: could not find \`$1'. \`$1' is required to run autogen.sh."
+        exit 1
+    }
+}
+check_command "$LIBTOOLIZE"
+check_command "$AUTORECONF"
+check_command "$ACLOCAL"
+check_command "$AUTOCONF"
+check_command "$AUTOHEADER"
+check_command "$AUTOMAKE"
+
+# Absence of pkg-config or misconfiguration can make some odd error
+# messages, we check if it is installed correctly. See:
+#  https://blogs.oracle.com/mandy/entry/autoconf_weirdness
+#
+# We cannot just check for pkg-config command, we need to check for
+# PKG_* macros. The pkg-config command can be defined in ./configure,
+# we cannot tell anything when not present.
+check_pkg_config() {
+    grep -q '^AC_DEFUN.*PKG_CHECK_MODULES' aclocal.m4 || {
+        cat <<EOF >&2
+autogen.sh: could not find PKG_CHECK_MODULES macro.
+
+  Either pkg-config is not installed on your system or
+  \`pkg.m4' is missing or not found by aclocal.
+
+  If \`pkg.m4' is installed at an unusual location, re-run
+  \`autogen.sh' by setting \`ACLOCAL_FLAGS':
+
+    ACLOCAL_FLAGS="-I <prefix>/share/aclocal" ./autogen.sh
+
+EOF
+        exit 1
+    }
+}
+
+
 echo "autogen.sh: start libtoolize to get ltmain.sh"
-libtoolize --copy --force
+${LIBTOOLIZE} --copy --force
 echo "autogen.sh: reconfigure with autoreconf"
-autoreconf -vif -I m4 || {
+${AUTORECONF} -vif -I m4 || {
     echo "autogen.sh: autoreconf has failed ($?), let's do it manually"
-    for dir in . libevent; do
-       echo "autogen.sh: configure `basename \`readlink -f $dir\``"
-       (cd $dir && aclocal -I m4)
-       (cd $dir && libtoolize --automake --copy --force)
-       (cd $dir && aclocal -I m4)
-       (cd $dir && autoconf --force)
-       (cd $dir && autoheader)
-       (cd $dir && automake --add-missing --copy --force-missing)
+    for dir in $PWD *; do
+        [ -d "$dir" ] || continue
+        [ -f "$dir"/configure.ac ] || [ -f "$dir"/configure.in ] || continue
+       echo "autogen.sh: configure `basename $dir`"
+       (cd "$dir" && ${ACLOCAL} -I m4 ${ACLOCAL_FLAGS})
+        if [ x"$dir" = x"$PWD" ]; then
+            (cd "$dir" && check_pkg_config)
+        fi
+       (cd "$dir" && ${LIBTOOLIZE} --automake --copy --force)
+       (cd "$dir" && ${ACLOCAL} -I m4 ${ACLOCAL_FLAGS})
+       (cd "$dir" && ${AUTOCONF} --force)
+       (cd "$dir" && ${AUTOHEADER})
+       (cd "$dir" && ${AUTOMAKE} --add-missing --copy --force-missing)
     done
 }