groups.d/231.native_packages_etc.group:{image,graphics}magick:${PKG_NO_PURGE_LA_FILES}: don't delete .la files.

etc/README.md: documents NO_PURGE_LA_FILES.
subr.pkg/pkg_install_files.subr:pkgp_install_files_libraries(): purge .la files subject to ${PKG_NO_PURGE_LA_FILES}.
vars.env.d/000.build.env:${DEFAULT_BUILD_VARS}: adds NO_PURGE_LA_FILES.
subr.ex/ex_rtl_rpm.subr:ex_rtl_purge_la_files(): removes duplicate function.

5 files changed, 7 insertions, 24 deletions

diff --git a/etc/README.md b/etc/README.md
index cf2d21c1..794d2fbf 100644
--- a/etc/README.md
+++ b/etc/README.md
@@ -784,6 +784,7 @@ VERSION`` and/or ``URLS_GIT``, respectively.
 | NO_CLEAN_BASE_DIR            | Flag(UInt,0)     | Inhibit cleaning of package build root directory beneath ``${BUILD_WORKDIR}``                                                              |
 | NO_CLEAN                     | Flag(UInt,0)     | Inhibit cleaning of package build directory beneath ``${PKG_BASE_DIR}`` pre-finish                                                         |
 | NO_LOG_VARS                  | Flag(UInt,0)     | Inhibit logging of build & package variables pre-package build                                                                             |
+| NO_PURGE_LA_FILES            | Flag(UInt,0)     | Inhibit purging of .la files                                                                                                               |
 | PATCHES_EXTRA                | List( )          | Additional patches to apply                                                                                                                |
 | PKG_CONFIG                   | CmdName          | ``pkg-config(1)`` implementation                                                                                                           |
 | PKG_CONFIG_LIBDIR            | DirName          | ``pkg-config(1)`` search directory                                                                                                         |
diff --git a/groups.d/231.native_packages_etc.group b/groups.d/231.native_packages_etc.group
index 56fdd5de..930fae11 100644
--- a/groups.d/231.native_packages_etc.group
+++ b/groups.d/231.native_packages_etc.group
@@ -187,6 +187,7 @@ zstd";
 : ${PKG_GRAPHICSMAGICK_LDFLAGS_CONFIGURE_EXTRA:=-fopenmp};
 : ${PKG_GRAPHICSMAGICK_LIBTOOL=rlibtool};
 : ${PKG_GRAPHICSMAGICK_IN_TREE:=1};
+: ${PKG_GRAPHICSMAGICK_NO_PURGE_LA_FILES=1};
 : ${PKG_GZIP_SHA256SUM:=7454eb6935db17c6655576c2e1b0fabefd38b4d0936e0f87f48cd062ce91a057};
 : ${PKG_GZIP_VERSION:=1.13};
 : ${PKG_GZIP_URL:=https://ftp.gnu.org/gnu/gzip/gzip-${PKG_GZIP_VERSION}.tar.xz};
@@ -221,6 +222,7 @@ gl_cv_func_getopt_gnu=yes"};
 : ${PKG_IMAGEMAGICK_CFLAGS_CONFIGURE_EXTRA:="-I${PREFIX_NATIVE}/include/freetype2"};
 : ${PKG_IMAGEMAGICK_CONFIGURE_ARGS_EXTRA:="--with-modules --without-x --without-pango --without-jemalloc --without-tcmalloc --without-umem"};
 : ${PKG_IMAGEMAGICK_LIBTOOL="clibtool"};
+: ${PKG_IMAGEMAGICK_NO_PURGE_LA_FILES=1};
 : ${PKG_INFOUNZIP_URLS_GIT:=infounzip=https://github.com/Redfoxmoon3/infounzip.git@master};
 : ${PKG_INFOUNZIP_IN_TREE:=1};
 : ${PKG_INFOUNZIP_CFLAGS_BUILD_EXTRA:=${NATIVE_PACKAGES_CFLAGS_CONFIGURE}};
diff --git a/subr.ex/ex_rtl_rpm.subr b/subr.ex/ex_rtl_rpm.subr
index 7c89acb3..2f1589d6 100644
--- a/subr.ex/ex_rtl_rpm.subr
+++ b/subr.ex/ex_rtl_rpm.subr
@@ -228,28 +228,6 @@ ex_rtl_fixup_pkgconfig_paths() {
 };
 
 #
-# ex_rtl_purge_la_files() - purge .la files in tree
-# @_dname_base:		base directory pathname
-#
-# Returns:		zero (0) on success, non-zero (>0) on failure
-#
-ex_rtl_purge_la_files() {
-	local	_erplf_dname_base="${1}"	\
-		_erplf_la_path="";
-
-	for _erplf_la_path in $(find		\
-			"${_erplf_dname_base}"	\
-			-type f			\
-			-name \*.la);
-	do
-		if ! rtl_fileop rm "${_erplf_la_path}"; then
-			return 1;
-		fi;
-	done;
-	return 0;
-};
-
-#
 # ex_rtl_strip_files() - strip files of debugging information
 # @_strip_cmd:		strip(1) command name
 # @_tree_root:		pathname to tree root
diff --git a/subr.pkg/pkg_install_files.subr b/subr.pkg/pkg_install_files.subr
index aebba9a1..f37257c6 100644
--- a/subr.pkg/pkg_install_files.subr
+++ b/subr.pkg/pkg_install_files.subr
@@ -45,7 +45,9 @@ pkgp_install_files_libraries() {
 	if [ "${PKG_BUILD_TYPE}" != "host" ]; then
 		ex_rtl_install_library_archives "${PKG_DESTDIR}" "${PKG_TARGET}-mdso" || return 1;
 	fi;
-	ex_rtl_purge_la_files "${PKG_DESTDIR}" || return 1;
+	if [ "${PKG_NO_PURGE_LA_FILES:-0}" -eq 0 ]; then
+		ex_rtl_purge_la_files "${PKG_DESTDIR}" || return 1;
+	fi;
 	return 0;
 };
 
diff --git a/vars.env.d/000.build.env b/vars.env.d/000.build.env
index e4a08d1f..1c38d3da 100644
--- a/vars.env.d/000.build.env
+++ b/vars.env.d/000.build.env
@@ -37,7 +37,7 @@ DEFAULT_BUILD_VARS="											\
 	MAKEFLAGS_INSTALL_EXTRA MAKEFLAGS_INSTALL_EXTRA_LIST MAKEFLAGS_INSTALL_LIST			\
 	MAKEFLAGS_LOADAVG MAKEFLAGS_PARALLELISE MAKEFLAGS_VERBOSITY MAKE_INSTALL_VNAME			\
 	MAKE_SUBDIRS MIRRORS MIRRORS_GIT NO_CLEAN NO_CLEAN_BASE_DIR NO_CLEAN_BUILD_DIR			\
-	NO_LOG_VARS PATCHES_EXTRA PKG_CONFIG PKG_CONFIG_LIBDIR PKGLIST_DISABLE PREFIX			\
+	NO_LOG_VARS NO_PURGE_LA_FILES PATCHES_EXTRA PKG_CONFIG PKG_CONFIG_LIBDIR PKGLIST_DISABLE PREFIX	\
 	PYTHON RANLIB RPM_DISABLE SHA256SUM SOFORT_NATIVE_CC SOFORT_NATIVE_CFLAGS			\
 	SOFORT_NATIVE_CFLAGS_EXTRA SOFORT_NATIVE_CXX SOFORT_NATIVE_CXXFLAGS				\
 	SOFORT_NATIVE_CXXFLAGS_EXTRA SOFORT_NATIVE_LD SOFORT_NATIVE_LDFLAGS				\