bpo-31904: Enable libpython3.so shared library for VxWorks (GH-23741)

Author: pxinwr

Misc/NEWS.d/next/Build/2020-12-11-18-04-38.bpo-31904.j3j6d8.rst

@@ -0,0 +1 @@
+Enable libpython3.so for VxWorks.

configure

@@ -5937,7 +5937,7 @@ $as_echo "#define Py_ENABLE_SHARED 1" >>confdefs.h
 	      PY3LIBRARY=libpython3.so
 	  fi
           ;;
-    Linux*|GNU*|NetBSD*|FreeBSD*|DragonFly*|OpenBSD*)
+    Linux*|GNU*|NetBSD*|FreeBSD*|DragonFly*|OpenBSD*|VxWorks*)
 	  LDLIBRARY='libpython$(LDVERSION).so'
 	  BLDLIBRARY='-L. -lpython$(LDVERSION)'
 	  RUNSHARED=LD_LIBRARY_PATH=`pwd`${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}
@@ -9721,7 +9721,7 @@ then
 		# when running test_compile.py.
 		LINKFORSHARED='-Wl,-E -N 2048K';;
 	VxWorks*)
-		LINKFORSHARED='--export-dynamic';;
+		LINKFORSHARED='-Wl,-export-dynamic';;
 	esac
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LINKFORSHARED" >&5

configure.ac

@@ -1133,7 +1133,7 @@ if test $enable_shared = "yes"; then
 	      PY3LIBRARY=libpython3.so
 	  fi
           ;;
-    Linux*|GNU*|NetBSD*|FreeBSD*|DragonFly*|OpenBSD*)
+    Linux*|GNU*|NetBSD*|FreeBSD*|DragonFly*|OpenBSD*|VxWorks*)
 	  LDLIBRARY='libpython$(LDVERSION).so'
 	  BLDLIBRARY='-L. -lpython$(LDVERSION)'
 	  RUNSHARED=LD_LIBRARY_PATH=`pwd`${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}
@@ -2798,7 +2798,7 @@ then
 		# when running test_compile.py.
 		LINKFORSHARED='-Wl,-E -N 2048K';;
 	VxWorks*)
-		LINKFORSHARED='--export-dynamic';;
+		LINKFORSHARED='-Wl,-export-dynamic';;
 	esac
 fi
 AC_MSG_RESULT($LINKFORSHARED)