SDL: cmake: Fix static linking to dependencies with "-" in library name

From 73215379717d174877c88fe7f05667b118e09f03 Mon Sep 17 00:00:00 2001
From: Simon McVittie <[EMAIL REDACTED]>
Date: Mon, 13 Jun 2022 11:51:41 +0100
Subject: [PATCH] cmake: Fix static linking to dependencies with "-" in library
 name

When SDL is built with Wayland support on Linux, and Wayland libraries
are linked as dependencies instead of being loaded with dlopen(), its
dependencies will include libraries whose names contain a dash, like
`-lwayland-client` and `-ldecor-0`. Don't replace such libraries with
`-lwayland` and `-ldecor`: those don't exist and linking them will fail.

Signed-off-by: Simon McVittie <smcv@collabora.com>
---
 sdl2-config.cmake.in | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sdl2-config.cmake.in b/sdl2-config.cmake.in
index 16a2520be52..2ac3fbecf90 100644
--- a/sdl2-config.cmake.in
+++ b/sdl2-config.cmake.in
@@ -53,12 +53,12 @@ set(_sdl2_libraries "@SDL_LIBS@")
 set(_sdl2_static_private_libs "@SDL_STATIC_LIBS@")
 
 # Convert _sdl2_libraries to list and keep only libraries
-string(REGEX MATCHALL "-[lm]([a-zA-Z0-9._]+)" _sdl2_libraries "${_sdl2_libraries}")
+string(REGEX MATCHALL "-[lm]([-a-zA-Z0-9._]+)" _sdl2_libraries "${_sdl2_libraries}")
 string(REGEX REPLACE "^-l" "" _sdl2_libraries "${_sdl2_libraries}")
 string(REGEX REPLACE ";-l" ";" _sdl2_libraries "${_sdl2_libraries}")
 
 # Convert _sdl2_static_private_libs to list and keep only libraries
-string(REGEX MATCHALL "(-[lm]([a-zA-Z0-9._]+))|(-Wl,[^ ]*framework[^ ]*)" _sdl2_static_private_libs "${_sdl2_static_private_libs}")
+string(REGEX MATCHALL "(-[lm]([-a-zA-Z0-9._]+))|(-Wl,[^ ]*framework[^ ]*)" _sdl2_static_private_libs "${_sdl2_static_private_libs}")
 string(REGEX REPLACE "^-l" "" _sdl2_static_private_libs "${_sdl2_static_private_libs}")
 string(REGEX REPLACE ";-l" ";" _sdl2_static_private_libs "${_sdl2_static_private_libs}")