Initial 'configure' based compilation (buildconf generates configure script).

apache2/build/find_pcre.m4

@@ -0,0 +1,57 @@
+dnl Check for PCRE Libraries
+dnl CHECK_PCRE(ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
+dnl Sets:
+dnl  PCRE_CFLAGS
+dnl  PCRE_LIBS
+
+PCRE_CONFIG="pcre-config"
+PCRE_CFLAGS=""
+PCRE_LIBS=""
+
+AC_DEFUN([CHECK_PCRE],
+[dnl
+
+AC_ARG_WITH(
+    pcre,
+    [AC_HELP_STRING([--with-pcre=PATH],[Path to the pcre prefix])],
+    pcre_path="$withval",
+    :)
+
+dnl # Determine pcre lib directory
+if test -z "${pcre_path}"; then
+    test_paths="/usr/local /usr"
+else
+    test_paths="${pcre_path}"
+fi
+
+AC_MSG_CHECKING([for ${PCRE_CONFIG}])
+for x in ${test_paths}; do
+    if test -e "${x}/bin/${PCRE_CONFIG}"; then
+        with_pcre="${x}"
+        break
+    else
+        with_pcre=""
+    fi
+done
+if test -n "${with_pcre}"; then
+    PCRE_CONFIG="${with_pcre}/bin/${PCRE_CONFIG}"
+    AC_MSG_RESULT([${PCRE_CONFIG}])
+    PCRE_CFLAGS="`${PCRE_CONFIG} --cflags`"
+    PCRE_LIBS="`${PCRE_CONFIG} --libs`"
+    CFLAGS=$save_CFLAGS
+    LDFLAGS=$save_LDFLAGS
+else
+    AC_MSG_RESULT([no])
+fi
+
+AC_SUBST(PCRE_LIBS)
+AC_SUBST(PCRE_CFLAGS)
+
+if test -z "${PCRE_LIBS}"; then
+  AC_MSG_NOTICE([*** pcre library not found.])
+  ifelse([$2], , AC_MSG_ERROR([pcre library is required]), $2)
+else
+  AC_MSG_NOTICE([using '${PCRE_LIBS}' for pcre Library])
+  ifelse([$1], , , $1) 
+fi 
+])