#9386 reset PATH variable and unset variables exported by Sage.

Author: Thierry Monteil

src/bin/sage-native-execute

@@ -1,9 +1,112 @@
 #!/bin/sh
 
+# Reset paths to their previous value
+
 LD_LIBRARY_PATH=$SAGE_ORIG_LD_LIBRARY_PATH; export LD_LIBRARY_PATH
 if [ `uname` = 'Darwin' ]; then
   DYLD_LIBRARY_PATH=$SAGE_ORIG_DYLD_LIBRARY_PATH
 fi
 
-"$@"
+PATH=$SAGE_ORIG_PATH ; export PATH
+
+
+# Unset variables possibly set by Sage, except proxies that are poisoned in
+# sage-spkg only (and may contain important information otherwise).
 
+VARIABLES_TO_UNSET='
+AR
+AS
+CACHEGRIND_FLAGS
+CALLGRIND_FLAGS
+CALLRGIND_FLAGS
+CC
+CCACHE_BASEDIR
+CHMOD
+CP
+CPATH
+CPP
+CXX
+CXXFLAGS
+DOT_SAGE
+DYLD_LIBRARY_PATH
+ECLDIR
+F77
+F90
+F95
+FC
+GIT_EXEC_PATH
+GIT_TEMPLATE_DIR
+GP_DATA_DIR
+GPDOCDIR
+GPHELP
+IPYTHONDIR
+LC_ALL
+LD
+LDFLAGS
+LD_LIBRARY_PATH
+LIBRARY_PATH
+LN
+MACOSX_DEPLOYMENT_TARGET
+MAKE
+MASSIF_FLAGS
+MAXIMA_PREFIX
+MKDIR
+MPLCONFIGDIR
+MV
+OBJC
+OBJCXX
+OMEGA_FLAGS
+PATH
+PS1
+PYTHON_EGG_CACHE
+PYTHONHOME
+PYTHONPATH
+PYTHONSTARTUP
+RANLIB
+__sage__
+SAGE64
+SAGE_BANNER
+SAGE_BUILD_DIR
+SAGE_CHECK
+SAGE_DISTFILES
+SAGE_DOC
+SAGE_DOC_MATHJAX
+SAGE_ENV_SOURCED
+SAGE_ETC
+SAGE_EXTCODE
+SAGE_IMPORTALL
+SAGE_KEEP_BUILT_SPKGS
+SAGE_LOCAL
+SAGE_LOGS
+SAGE_NUM_THREADS
+SAGE_NUM_THREADS_PARALLEL
+SAGE_ORIG_DYLD_LIBRARY_PATH
+SAGE_ORIG_DYLD_LIBRARY_PATH_SET
+SAGE_ORIG_LD_LIBRARY_PATH
+SAGE_ORIG_LD_LIBRARY_PATH_SET
+SAGE_ORIG_PATH
+SAGE_ORIG_PATH_SET
+SAGE_REPO_ANONYMOUS
+SAGE_REPO_AUTHENTICATED
+SAGE_ROOT
+SAGE_SCRIPTS_DIR
+SAGE_SERVER
+SAGE_SHARE
+SAGE_SPKG_INST
+SAGE_SRC
+SAGE_STARTUP_FILE
+SAGE_UPSTREAM
+SINGULAR_EXECUTABLE
+SINGULARPATH
+TERMINFO
+TOUCH
+UNAME
+ZDOTDIR
+'
+
+for VARIABLE in $VARIABLES_TO_UNSET ; do
+    unset $VARIABLE
+done
+
+
+"$@"