X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/e12f8c3248614077e92c7ba23386e1f36d570c8f..f82a3c9b085560c97e17a796e01b73f1accfd24e:/src/src/exim.c

diff --git a/src/src/exim.c b/src/src/exim.c
index 670319b98..a6c0d7832 100644
--- a/src/src/exim.c
+++ b/src/src/exim.c
@@ -973,7 +973,9 @@ DEBUG(D_any) do {
            * unless its an ancient version of PCRE in which case it
            * is not defined */
 #ifdef PCRE_PRERELEASE
-          PCRE_PRERELEASE "",
+# define STRINGIFY(x) #x
+          STRINGIFY(PCRE_PRERELEASE) "",
+# undef STRINGIFY
 #else
           "",
 #endif