Install headers and pkgconfig

.github/workflows/common-workflow.yml

@@ -128,6 +128,17 @@ jobs:
         working-directory: ${{ env.ISSM_DIR }}
         shell: 'bash'
 
+      - name: Check pkg-config
+        run: |
+          export PKG_CONFIG_PATH=${{ env.ISSM_DIR }}/lib/pkgconfig
+          incflags=$(pkg-config --print-errors --cflags-only-I ISSM)
+          echo $incflags
+          incdir=$(echo $incflags | awk '{ match($0, /-I(.*)/, m); print m[1]; }')
+          if [ -f "$incdir/classes/FemModel.h" ]; then
+            echo "ISSM pkg-config and headers found."
+          else
+            echo "ISSM pkg-config and headers not found."
+          fi
       - name: Get MATLAB
         if: ${{ inputs.interface == 'matlab' }}
         id: setup-matlab

.github/workflows/ubuntu-basic.yml

@@ -22,6 +22,7 @@ jobs:
         --disable-static \
         --enable-development \
         --enable-debugging \
+        --enable-install-headers \
         --with-numthreads=4 \
         --with-matlab-dir=$MATLAB_ROOT \
         --with-fortran-lib="-L/usr/lib/x86_64-linux-gnu -lgfortran" \

.github/workflows/ubuntu-codipack.yml

@@ -22,6 +22,7 @@ jobs:
         --enable-tape-alloc \
         --enable-development \
         --enable-debugging \
+        --enable-install-headers \
         --with-numthreads=4 \
         --without-kriging \
         --without-kml \

.github/workflows/ubuntu-python.yml

@@ -25,6 +25,7 @@ jobs:
         --disable-static \
         --enable-development \
         --enable-debugging \
+        --enable-install-headers \
         --with-numthreads=4 \
         --with-python-version=3.12 \
         --with-python-dir=$PYTHON_ROOT \

ISSM.pc.in

@@ -0,0 +1,11 @@
+prefix=@prefix@
+exec_prefix=${prefix}
+libdir=${exec_prefix}/lib
+includedir=${prefix}/include
+
+Name: ISSM
+Description: The Ice-Sheet and Sea-level System Model (ISSM)
+Version: @VERSION@
+Url: @PACKAGE_URL@
+Libs: -L${libdir} -lISSMCore -lISSMModules -lISSMOverload
+Cflags: -I${includedir} -DHAVE_CONFIG_H

Makefile.am

@@ -2,3 +2,28 @@ EXTRA_DIST = reconf scripts test m4 examples etc doc packages
 SUBDIRS = src
 
 ACLOCAL_AMFLAGS = -I m4
+
+if INSTALL_HEADERS
+# install configured headers
+issmconfigdir = $(includedir)
+issmconfig_HEADERS = \
+	./config.h 
+
+# install configured pkg-config file
+issmpcdir = $(libdir)/pkgconfig
+issmpc_DATA = \
+	./ISSM.pc
+
+# install all normal ISSM headers
+install-all-issm-headers:
+	{ \
+	cd $(abs_srcdir)/src/c; \
+	hlist=$$(find -name '*.h'); \
+	for h in $$hlist; do \
+	$(MKDIR_P) $(DESTDIR)$(includedir)/$$(dirname $$h); \
+	$(INSTALL_HEADER) $$h $(DESTDIR)$(includedir)/$$h; \
+	done; \
+	}
+.PHONY: install-all-issm-headers
+install-data-local: install-all-issm-headers
+endif

configure.ac

@@ -44,5 +44,12 @@ AC_CONFIG_FILES([
 	src/m/Makefile
 ])
 
+# pkg-config file
+AM_COND_IF([INSTALL_HEADERS], [
+	AC_CONFIG_FILES([
+		ISSM.pc
+	])
+])
+
 #End of configure.ac
 AC_OUTPUT

m4/issm_options.m4

@@ -180,6 +180,17 @@ AC_DEFUN([ISSM_OPTIONS],[
 	ISSMEXT=".exe"
 	AC_SUBST([ISSMEXT])
 	dnl }}}
+	dnl Install Headers {{{
+	AC_MSG_CHECKING(for installing headers)
+	AC_ARG_ENABLE(
+		[install-headers],
+		AS_HELP_STRING([--enable-install-headers], [install headers and auiliary files to use ISSM as a library]),
+		[INSTALL_HEADERS_VALUE=${enableval}],
+		[INSTALL_HEADERS_VALUE=no]
+	)
+	AM_CONDITIONAL([INSTALL_HEADERS], [test "x${INSTALL_HEADERS_VALUE}" == "xyes"])
+	AC_MSG_RESULT([$INSTALL_HEADERS_VALUE])
+	dnl }}}
 
 	dnl OS{{{
 	IS_MAC=no