snort: Do not use llvm libunwind

If llvm unwind is present then disable unwinding support since it will
not have all unw_* functions eg. unw_strerror

Signed-off-by: Khem Raj <raj.khem@gmail.com>

2 files changed, 35 insertions, 1 deletions

diff --git a/meta-networking/recipes-connectivity/snort/snort3/0001-cmake-Check-for-HP-libunwind.patch b/meta-networking/recipes-connectivity/snort/snort3/0001-cmake-Check-for-HP-libunwind.patch
new file mode 100644
index 000000000..7b7a0d098
--- /dev/null
+++ b/meta-networking/recipes-connectivity/snort/snort3/0001-cmake-Check-for-HP-libunwind.patch
@@ -0,0 +1,33 @@
+From 433a412fad2ab0383ac3c625d183a71684f2b97b Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Tue, 20 Feb 2024 15:35:14 -0800
+Subject: [PATCH] cmake: Check for HP libunwind
+
+This is to ensure that cmake does not detect LLVM unwinder, which
+can provide the support for some HP unwinder functionality but not all
+e.g. unw_strerror goes missing. By checking for libunwind-common.h in
+tests we ensure that this test passes only with HP libunwind.
+
+Upstream-Status: Inappropriate [OE-Specific]
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ cmake/FindLibunwind.cmake | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/cmake/FindLibunwind.cmake b/cmake/FindLibunwind.cmake
+index f66800a18..1ad66fc83 100644
+--- a/cmake/FindLibunwind.cmake
++++ b/cmake/FindLibunwind.cmake
+@@ -22,7 +22,7 @@ find_package(PkgConfig QUIET)
+ pkg_check_modules(PC_LIBUNWIND libunwind)
+ 
+ find_path(LIBUNWIND_INCLUDE_DIRS
+-    NAMES libunwind.h
++    NAMES libunwind-common.h
+     HINTS ${PC_LIBUNWIND_INCLUDE_DIRS}
+ )
+ 
+-- 
+2.43.2
+
diff --git a/meta-networking/recipes-connectivity/snort/snort3_git.bb b/meta-networking/recipes-connectivity/snort/snort3_git.bb
index f40a1d7d6..0f4a86f61 100644
--- a/meta-networking/recipes-connectivity/snort/snort3_git.bb
+++ b/meta-networking/recipes-connectivity/snort/snort3_git.bb
@@ -9,7 +9,8 @@ PV = "3+git${SRCPV}"
 
 DEPENDS = "flex hwloc libdaq libdnet libpcap libpcre libtirpc libunwind luajit zlib"
 
-SRC_URI = "git://github.com/snort3/snort3.git;protocol=https;branch=master"
+SRC_URI = "git://github.com/snort3/snort3.git;protocol=https;branch=master \
+           file://0001-cmake-Check-for-HP-libunwind.patch"
 SRCREV = "e1760a8dbb829bb3fcf1a340ab6cc4bb80a47ecd"
 
 S = "${WORKDIR}/git"