1 files changed, 29 insertions, 0 deletions
diff --git a/src/external/libpcre.m4 b/src/external/libpcre.m4
new file mode 100644
index 0000000..d4d50e8
--- /dev/null
+++ b/src/external/libpcre.m4
@@ -0,0 +1,29 @@
+AC_SUBST(PCRE_LIBS)
+AC_SUBST(PCRE_CFLAGS)
+
+PKG_CHECK_MODULES(
+    [PCRE],
+    [libpcre2-8],
+    [
+        found_libpcre=yes
+        AC_DEFINE(
+            [PCRE2_CODE_UNIT_WIDTH],
+            8,
+            [Define libpcre2 unit size]
+        )
+    ],
+    [
+        found_libpcre=no
+    ]
+)
+
+SSS_AC_EXPAND_LIB_DIR()
+AS_IF([test x"$found_libpcre" != xyes],
+    [AC_CHECK_HEADERS([pcre2.h],
+        [AC_CHECK_LIB([libpcre2-8],
+                      [pcre2_compile],
+                      [PCRE_LIBS="-L$sss_extra_libdir -lpcre2-8"],
+                      [AC_MSG_ERROR([No usable PCRE2 library found])],
+                      [-L$sss_extra_libdir])],
+        [AC_MSG_ERROR([pcre2 header files are not installed])])]
+)