libdart: Fix installation of pkgconfig file

packages/libdart/CMakeLists.txt.patch

@@ -25,3 +25,12 @@ index 100bfb8b59b..39170ea1187 100644
  
  if(DART_BUILD_EXTRAS)
    add_subdirectory(extras)
+@@ -424,7 +424,7 @@
+ # Generate the DART pkg-config
+ set(PC_CONFIG_IN ${DART_SOURCE_DIR}/cmake/dart.pc.in)
+ set(PC_CONFIG_OUT ${DART_BINARY_DIR}/cmake/dart.pc)
+-set(PC_CONFIG_INSTALL_DIR ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}/pkgconfig)
++set(PC_CONFIG_INSTALL_DIR ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
+ file(RELATIVE_PATH
+   RELATIVE_PATH_TO_INSTALL_PREFIX
+   "${PC_CONFIG_INSTALL_DIR}"

packages/libdart/build.sh

@@ -4,7 +4,7 @@ TERMUX_PKG_GROUPS="science"
 TERMUX_PKG_LICENSE="BSD 2-Clause"
 TERMUX_PKG_MAINTAINER="Pooya Moradi <pvonmoradi@gmail.com>"
 TERMUX_PKG_VERSION="6.12.2"
-TERMUX_PKG_REVISION=1
+TERMUX_PKG_REVISION=2
 TERMUX_PKG_SRCURL="https://github.com/dartsim/dart/archive/refs/tags/v$TERMUX_PKG_VERSION.tar.gz"
 TERMUX_PKG_SHA256=db1b3ef888d37f0dbc567bc291ab2cdb5699172523a58dd5a5fe513ee38f83b0
 TERMUX_PKG_AUTO_UPDATE=true

packages/libdart/cmake-dart.pc.in.patch

@@ -0,0 +1,19 @@
+--- a/cmake/dart.pc.in
++++ b/cmake/dart.pc.in
+@@ -1,12 +1,12 @@
+ # This file was generated by CMake for @PROJECT_NAME@
+-prefix=${pcfiledir}/@RELATIVE_PATH_TO_INSTALL_PREFIX@
++prefix=@CMAKE_INSTALL_PREFIX@
+ exec_prefix=${prefix}
+-libdir=${prefix}/@CMAKE_INSTALL_LIBDIR@
+-includedir=${prefix}/@CMAKE_INSTALL_INCLUDEDIR@/dart
++libdir=@CMAKE_INSTALL_LIBDIR@
++includedir=${prefix}/@CMAKE_INSTALL_INCLUDEDIR@
+ 
+ Name: @PROJECT_NAME@
+ Description: @DART_PKG_DESC@
+ Version: @DART_VERSION@
+ Requires: @DART_PKG_EXTERNAL_DEPS@
+ Libs: -L${libdir} -ldart
+-Cflags: @CMAKE_CXX_FLAGS@
++Cflags: -I${includedir}