Pass the boost path from configure --with-boost down to meson

Author: vbraun

build/pkgs/sagelib/spkg-install.in

@@ -44,7 +44,10 @@ SITEPACKAGESDIR=$(python3 -c 'import sysconfig; print(sysconfig.get_paths()["pur
 # does not shadow the namespace package sage during the build.
 (cd "$SITEPACKAGESDIR" && rm -f sage/__init__.py)
 if [ "$SAGE_EDITABLE" = yes ]; then
-    sdh_pip_editable_install . --config-settings=build-dir="build/sage-distro" --config-settings=setup-args="-DSAGE_LOCAL=$SAGE_LOCAL"
+    sdh_pip_editable_install . \
+        --config-settings=build-dir="build/sage-distro" \
+        --config-settings=setup-args="--native-file=$SAGE_PKGS/../platform/meson/sage-configure-native-file.ini" \
+        --config-settings=setup-args="-DSAGE_LOCAL=$SAGE_LOCAL"
 
     if [ "$SAGE_WHEELS" = yes ]; then
         # Additionally build a wheel (for use in other venvs)

build/platform/meson/.gitignore

@@ -0,0 +1 @@
+sage-configure-native-file.ini

build/platform/meson/sage-configure-native-file.ini.in

@@ -0,0 +1,6 @@
+# These meson settings are from Sage ./configure
+
+[properties]
+
+# Forwarded path from ./configure --with-boost=/path/to/boost
+boost_root = '@SAGE_BOOST_PREFIX@'

configure.ac

@@ -580,6 +580,7 @@ AC_SUBST(SAGE_PKG_CONFIG_PATH, [$SAGE_DARWIN_PKG_CONFIG_PATH'$SAGE_LOCAL/lib/pkg
 
 AC_CONFIG_FILES([build/make/Makefile-auto build/make/Makefile])
 AC_CONFIG_FILES([src/bin/sage-env-config src/bin/sage-src-env-config build/bin/sage-build-env-config])
+AC_CONFIG_FILES([build/platform/meson/sage-configure-native-file.ini])
 
 AC_CONFIG_FILES([pkgs/sage-conf/_sage_conf/_conf.py])