media-sound/loudgain: respect build flags provided by portage

Closes: https://bugs.gentoo.org/952032
Signed-off-by: YOSHIOKA Takuma <lo48576@hard-wi.red>

media-sound/loudgain/files/loudgain-0.6.8-github-pr37-respect-build-flags.patch

@@ -1,31 +0,0 @@
-https://github.com/Moonbase59/loudgain/pull/37
-From 31fc71b9970f22a116a9ad7eae66dc9cc66a54c1 Mon Sep 17 00:00:00 2001
-From: Peter Oliver <git@mavit.org.uk>
-Date: Sun, 18 Oct 2020 00:51:52 +0100
-Subject: [PATCH] =?UTF-8?q?Don=E2=80=99t=20override=20CFLAGS=20and=20CXXFL?=
- =?UTF-8?q?AGS=20env=20variables?=
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-This is necessary, for example, to build with the [hardened build flags](https://src.fedoraproject.org/rpms/redhat-rpm-config/blob/master/f/buildflags.md#hardened-builds) used by default for Fedora.
----
- CMakeLists.txt | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/CMakeLists.txt b/CMakeLists.txt
-index 9487ab9..eb030e2 100644
---- a/CMakeLists.txt
-+++ b/CMakeLists.txt
-@@ -72,9 +72,9 @@ SET_TARGET_PROPERTIES(loudgain PROPERTIES
-   COMPILE_FLAGS "-Wall -pedantic -g"
- )
- 
--SET(CMAKE_C_FLAGS "-std=gnu99 -D_GNU_SOURCE")
-+SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu99 -D_GNU_SOURCE")
- 
--SET(CMAKE_CXX_FLAGS "-std=gnu++11 -D_GNU_SOURCE")
-+SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++11 -D_GNU_SOURCE")
- 
- INSTALL(TARGETS loudgain DESTINATION ${CMAKE_INSTALL_PREFIX}/bin)
- 

media-sound/loudgain/files/loudgain-0.6.8-respect-build-flags.patch

@@ -0,0 +1,22 @@
+Respect CFLAGS and CXXFLAGS provided by the package manager.
+https://bugs.gentoo.org/952032
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 9487ab98a594..a8e1bed7a527 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -68,14 +68,6 @@ TARGET_LINK_LIBRARIES(loudgain
+   ${LTAG_LIBRARIES}
+ )
+ 
+-SET_TARGET_PROPERTIES(loudgain PROPERTIES
+-  COMPILE_FLAGS "-Wall -pedantic -g"
+-)
+-
+-SET(CMAKE_C_FLAGS "-std=gnu99 -D_GNU_SOURCE")
+-
+-SET(CMAKE_CXX_FLAGS "-std=gnu++11 -D_GNU_SOURCE")
+-
+ INSTALL(TARGETS loudgain DESTINATION ${CMAKE_INSTALL_PREFIX}/bin)
+ 
+ INSTALL(FILES

media-sound/loudgain/loudgain-0.6.8_p20240128-r2.ebuild

@@ -28,11 +28,11 @@ DEPEND="${COMMON_DEPEND}"
 
 PATCHES=(
 	"${FILESDIR}/loudgain-0.6.8-github-pr34-manpage.patch"
-	"${FILESDIR}/loudgain-0.6.8-github-pr37-respect-build-flags.patch"
 	"${FILESDIR}/loudgain-0.6.8-github-pr50-ffmpeg6.patch"
 	"${FILESDIR}/loudgain-0.6.8-github-pr53-print-taglib-version.patch"
 	"${FILESDIR}/loudgain-0.6.8-github-pr65-ffmpeg6-gcc14.patch"
 	"${FILESDIR}/loudgain-0.6.8-github-pr66-ffmpeg7.patch"
+	"${FILESDIR}/loudgain-0.6.8-respect-build-flags.patch"
 )
 
 src_install() {