libpcre2: add missing gcc2 patchset.

dev-libs/libpcre2/patches/libpcre2-10.33.patchset

@@ -0,0 +1,30 @@
+From e1812512ada6e350a2f0fd63d874e8eee31a309e Mon Sep 17 00:00:00 2001
+From: Jerome Duval <jerome.duval@gmail.com>
+Date: Tue, 30 Apr 2019 18:33:26 +0200
+Subject: gcc2 fix
+
+
+diff --git a/src/pcre2_jit_compile.c b/src/pcre2_jit_compile.c
+index 1f21bfb..f107883 100644
+--- a/src/pcre2_jit_compile.c
++++ b/src/pcre2_jit_compile.c
+@@ -3873,6 +3873,8 @@ DEFINE_COMPILER;
+ SLJIT_UNUSED_ARG(backtracks);
+ SLJIT_UNUSED_ARG(must_be_valid);
+ 
++{
++
+ #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32
+ struct sljit_jump *jump;
+ #endif
+@@ -3948,6 +3950,7 @@ if (common->invalid_utf && !must_be_valid)
+ #endif /* SUPPORT_UNICODE */
+ OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1));
+ }
++}
+ 
+ static void check_newlinechar(compiler_common *common, int nltype, jump_list **backtracks, BOOL jumpifmatch)
+ {
+-- 
+2.21.0
+