audio/liblscp: Fix reported version and pathfix

The CMake file runs git to determine versioning data however
since we don't import a git repo it fails to work as intended
While at it fix install path of .pc file as USES= pathfix doesn't
cover the logic used in this project

audio/liblscp/Makefile

@@ -1,5 +1,6 @@
 PORTNAME=	liblscp
 DISTVERSION=	0.9.12
+PORTREVISION=	1
 CATEGORIES=	audio
 MASTER_SITES=	SF/qsampler/${PORTNAME}/${DISTVERSION} \
 		http://download.linuxsampler.org/packages/
@@ -11,7 +12,7 @@ WWW=		https://www.linuxsampler.org/
 LICENSE=	LGPL21+
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-USES=		cmake pathfix
+USES=		cmake
 USE_LDCONFIG=	yes
 
 .include <bsd.port.mk>

audio/liblscp/files/patch-CMakeLists.txt

@@ -0,0 +1,20 @@
+--- CMakeLists.txt.orig	2024-04-18 22:33:21 UTC
++++ CMakeLists.txt
+@@ -9,7 +9,7 @@ set (PROJECT_DOMAIN    "linuxsampler.org")
+ set (PROJECT_COPYRIGHT "Copyright (C) 2004-2024, rncbc aka Rui Nuno Capela. All rights reserved.")
+ set (PROJECT_DOMAIN    "linuxsampler.org")
+
+-execute_process (
++#[[ execute_process (
+   COMMAND git describe --tags --dirty --abbrev=6
+   WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+   OUTPUT_VARIABLE GIT_DESCRIBE_OUTPUT
+@@ -32,7 +32,7 @@ if (GIT_DESCRIBE_RESULT EQUAL 0)
+     set (GIT_VERSION "${GIT_VERSION} [${GIT_REVPARSE_OUTPUT}]")
+   endif ()
+   set (PROJECT_VERSION "${GIT_VERSION}")
+-endif ()
++endif () ]]
+
+
+ set (CONFIG_PREFIX "${CMAKE_INSTALL_PREFIX}")

audio/liblscp/files/patch-src_CMakeLists.txt

@@ -0,0 +1,10 @@
+--- src/CMakeLists.txt.orig	2024-04-18 22:33:51 UTC
++++ src/CMakeLists.txt
+@@ -62,6 +62,6 @@ install (FILES ${CMAKE_CURRENT_BINARY_DIR}/lscp.pc
+   DESTINATION ${CONFIG_INCLUDEDIR}/lscp)
+
+ install (FILES ${CMAKE_CURRENT_BINARY_DIR}/lscp.pc
+-  DESTINATION ${CONFIG_LIBDIR}/pkgconfig)
++  DESTINATION ${CMAKE_INSTALL_PREFIX}/libdata/pkgconfig)
+
+