From: Jingbo Chen <cj@yanhuangdata.com>
Date: Mon, 29 Jan 2024 02:50:16 +0000 (+0800)
Subject: fix the pcre versio check error on clang 16
X-Git-Tag: vectorscan/5.4.12^2~74^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F229%2Fhead;p=thirdparty%2Fvectorscan.git

fix the pcre versio check error on clang 16
---

diff --git a/cmake/pcre.cmake b/cmake/pcre.cmake
index e0acda5e..ebc4a9cc 100644
--- a/cmake/pcre.cmake
+++ b/cmake/pcre.cmake
@@ -30,7 +30,7 @@ if (PCRE_BUILD_SOURCE)
     #if PCRE_MAJOR != ${PCRE_REQUIRED_MAJOR_VERSION} || PCRE_MINOR < ${PCRE_REQUIRED_MINOR_VERSION}
     #error Incorrect pcre version
     #endif
-    main() {}" CORRECT_PCRE_VERSION)
+    int main(void) {return 0;}" CORRECT_PCRE_VERSION)
     set (CMAKE_REQUIRED_INCLUDES "${saved_INCLUDES}")
 
     if (NOT CORRECT_PCRE_VERSION)