From ae5dff0d7d2481277ea0f5e8f92eca4499db7dc4 Mon Sep 17 00:00:00 2001
From: Bryce Cahill <brycec@invenco.com>
Date: Mon, 11 Sep 2023 09:02:13 +1200
Subject: [PATCH] PCRE2: Explicitly specify cmake c standard

* Fixes compilation issues with for loops
---
 recipes/pcre2/all/conanfile.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/recipes/pcre2/all/conanfile.py b/recipes/pcre2/all/conanfile.py
index 5982290e7cdbe1..c01d4a7565408d 100644
--- a/recipes/pcre2/all/conanfile.py
+++ b/recipes/pcre2/all/conanfile.py
@@ -98,6 +98,8 @@ def generate(self):
         tc.variables["PCRE2_BUILD_PCRE2_32"] = self.options.build_pcre2_32
         tc.variables["PCRE2_SUPPORT_JIT"] = self.options.support_jit
         tc.variables["PCRE2GREP_SUPPORT_CALLOUT_FORK"] = self.options.get_safe("grep_support_callout_fork", False)
+        # Fix for error: 'for' loop initial declarations are only allowed in C99 or C11 mode
+        tc.variables["CMAKE_C_STANDARD"] = "99"
         if Version(self.version) < "10.38":
             # relocatable shared libs on Macos
             tc.cache_variables["CMAKE_POLICY_DEFAULT_CMP0042"] = "NEW"