- Issue #17752: Fix distutils tests when run from the installed location.

Lib/distutils/tests/support.py

@@ -218,4 +218,4 @@ def fixup_build_ext(cmd):
                 cmd.library_dirs = []
             else:
                 name, equals, value = runshared.partition('=')
-                cmd.library_dirs = value.split(os.pathsep)
+                cmd.library_dirs = [d for d in value.split(os.pathsep) if d]

Misc/NEWS

@@ -329,6 +329,8 @@ IDLE
 Tests
 -----
 
+- Issue #17752: Fix distutils tests when run from the installed location.
+
 - Issue #18604: Consolidated checks for GUI availability.  All platforms now
   at least check whether Tk can be instantiated when the GUI resource is
   requested.

configure

@@ -5326,7 +5326,7 @@ $as_echo_n "checking LDLIBRARY... " >&6; }
 if test "$enable_framework"
 then
   LDLIBRARY='$(PYTHONFRAMEWORKDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
-  RUNSHARED=DYLD_FRAMEWORK_PATH="`pwd`:$DYLD_FRAMEWORK_PATH"
+  RUNSHARED=DYLD_FRAMEWORK_PATH=`pwd`${DYLD_FRAMEWORK_PATH:+:${DYLD_FRAMEWORK_PATH}}
   BLDLIBRARY=''
 else
   BLDLIBRARY='$(LDLIBRARY)'
@@ -5348,13 +5348,13 @@ $as_echo "#define Py_ENABLE_SHARED 1" >>confdefs.h
     SunOS*)
 	  LDLIBRARY='libpython$(VERSION).so'
 	  BLDLIBRARY='-Wl,-R,$(LIBDIR) -L. -lpython$(VERSION)'
-	  RUNSHARED=LD_LIBRARY_PATH=`pwd`:${LD_LIBRARY_PATH}
+	  RUNSHARED=LD_LIBRARY_PATH=`pwd`${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}
 	  INSTSONAME="$LDLIBRARY".$SOVERSION
           ;;
     Linux*|GNU*|NetBSD*|FreeBSD*|DragonFly*|OpenBSD*)
 	  LDLIBRARY='libpython$(VERSION).so'
 	  BLDLIBRARY='-L. -lpython$(VERSION)'
-	  RUNSHARED=LD_LIBRARY_PATH=`pwd`:${LD_LIBRARY_PATH}
+	  RUNSHARED=LD_LIBRARY_PATH=`pwd`${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}
 	  case $ac_sys_system in
 	      FreeBSD*)
 		SOVERSION=`echo $SOVERSION|cut -d "." -f 1`
@@ -5372,12 +5372,12 @@ $as_echo "#define Py_ENABLE_SHARED 1" >>confdefs.h
 			;;
 	  esac
 	  BLDLIBRARY='-Wl,+b,$(LIBDIR) -L. -lpython$(VERSION)'
-	  RUNSHARED=SHLIB_PATH=`pwd`:${SHLIB_PATH}
+	  RUNSHARED=SHLIB_PATH=`pwd`${SHLIB_PATH:+:${SHLIB_PATH}}
 	  ;;
     OSF*)
 	  LDLIBRARY='libpython$(VERSION).so'
 	  BLDLIBRARY='-rpath $(LIBDIR) -L. -lpython$(VERSION)'
-	  RUNSHARED=LD_LIBRARY_PATH=`pwd`:${LD_LIBRARY_PATH}
+	  RUNSHARED=LD_LIBRARY_PATH=`pwd`${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}
 	  ;;
     atheos*)
 	  LDLIBRARY='libpython$(VERSION).so'
@@ -5387,11 +5387,11 @@ $as_echo "#define Py_ENABLE_SHARED 1" >>confdefs.h
     Darwin*)
     	LDLIBRARY='libpython$(VERSION).dylib'
 	BLDLIBRARY='-L. -lpython$(VERSION)'
-	RUNSHARED='DYLD_LIBRARY_PATH=`pwd`:${DYLD_LIBRARY_PATH}'
+	RUNSHARED=DYLD_LIBRARY_PATH=`pwd`${DYLD_LIBRARY_PATH:+:${DYLD_LIBRARY_PATH}}
 	;;
     AIX*)
 	LDLIBRARY='libpython$(VERSION).so'
-	RUNSHARED=LIBPATH=`pwd`:${LIBPATH}
+	RUNSHARED=LIBPATH=`pwd`${LIBPATH:+:${LIBPATH}}
 	;;
 
   esac

configure.ac

@@ -860,7 +860,7 @@ AC_MSG_CHECKING(LDLIBRARY)
 if test "$enable_framework"
 then
   LDLIBRARY='$(PYTHONFRAMEWORKDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK)'
-  RUNSHARED=DYLD_FRAMEWORK_PATH="`pwd`:$DYLD_FRAMEWORK_PATH"
+  RUNSHARED=DYLD_FRAMEWORK_PATH=`pwd`${DYLD_FRAMEWORK_PATH:+:${DYLD_FRAMEWORK_PATH}}
   BLDLIBRARY=''
 else
   BLDLIBRARY='$(LDLIBRARY)'
@@ -880,13 +880,13 @@ if test $enable_shared = "yes"; then
     SunOS*)
 	  LDLIBRARY='libpython$(VERSION).so'
 	  BLDLIBRARY='-Wl,-R,$(LIBDIR) -L. -lpython$(VERSION)'
-	  RUNSHARED=LD_LIBRARY_PATH=`pwd`:${LD_LIBRARY_PATH}
+	  RUNSHARED=LD_LIBRARY_PATH=`pwd`${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}
 	  INSTSONAME="$LDLIBRARY".$SOVERSION
           ;;
     Linux*|GNU*|NetBSD*|FreeBSD*|DragonFly*|OpenBSD*)
 	  LDLIBRARY='libpython$(VERSION).so'
 	  BLDLIBRARY='-L. -lpython$(VERSION)'
-	  RUNSHARED=LD_LIBRARY_PATH=`pwd`:${LD_LIBRARY_PATH}
+	  RUNSHARED=LD_LIBRARY_PATH=`pwd`${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}
 	  case $ac_sys_system in
 	      FreeBSD*)
 		SOVERSION=`echo $SOVERSION|cut -d "." -f 1`
@@ -904,12 +904,12 @@ if test $enable_shared = "yes"; then
 			;;
 	  esac
 	  BLDLIBRARY='-Wl,+b,$(LIBDIR) -L. -lpython$(VERSION)'
-	  RUNSHARED=SHLIB_PATH=`pwd`:${SHLIB_PATH}
+	  RUNSHARED=SHLIB_PATH=`pwd`${SHLIB_PATH:+:${SHLIB_PATH}}
 	  ;;
     OSF*)
 	  LDLIBRARY='libpython$(VERSION).so'
 	  BLDLIBRARY='-rpath $(LIBDIR) -L. -lpython$(VERSION)'
-	  RUNSHARED=LD_LIBRARY_PATH=`pwd`:${LD_LIBRARY_PATH}
+	  RUNSHARED=LD_LIBRARY_PATH=`pwd`${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}
 	  ;;
     atheos*)
 	  LDLIBRARY='libpython$(VERSION).so'
@@ -919,11 +919,11 @@ if test $enable_shared = "yes"; then
     Darwin*)
     	LDLIBRARY='libpython$(VERSION).dylib'
 	BLDLIBRARY='-L. -lpython$(VERSION)'
-	RUNSHARED='DYLD_LIBRARY_PATH=`pwd`:${DYLD_LIBRARY_PATH}'
+	RUNSHARED=DYLD_LIBRARY_PATH=`pwd`${DYLD_LIBRARY_PATH:+:${DYLD_LIBRARY_PATH}}
 	;;
     AIX*)
 	LDLIBRARY='libpython$(VERSION).so'
-	RUNSHARED=LIBPATH=`pwd`:${LIBPATH}
+	RUNSHARED=LIBPATH=`pwd`${LIBPATH:+:${LIBPATH}}
 	;;
 
   esac