Merge remote-tracking branch 'lp-make/rpath-origin' into 7.0

* lp-make/rpath-origin:
  makeRPath allow multiple root directories
  redo softIoc to be more c++y
  rpath $ORIGIN doc
  older binutils compat
  travis-ci test rpath $ORIGIN
  epicsGetExecName WIN32, Darwin, solaris, freebsd
  epicsGetExecDir() paths relative to executable
  LINKER_USE_RPATH=ORIGIN

# Conflicts:
#	configure/os/CONFIG.Common.linuxCommon

modules/libcom/src/misc/unixFileName.h

@@ -14,7 +14,29 @@
 #ifndef unixFileNameH
 #define unixFileNameH
 
+#include <shareLib.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define OSI_PATH_LIST_SEPARATOR ":"
 #define OSI_PATH_SEPARATOR "/"
 
+/** Return the absolute path of the current executable.
+ @returns NULL or the path.  Caller must free()
+ */
+epicsShareFunc
+char *epicsGetExecName(void);
+
+/** Return the absolute path of the directory containing the current executable.
+ @returns NULL or the path.  Caller must free()
+ */
+epicsShareFunc
+char *epicsGetExecDir(void);
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* unixFileNameH */