Delete doxygen.cfg, and use cwd-relative paths in doxygen.cfg.in.

Now "make doxygen" works for clang.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131282 91177308-0d34-0410-b5e6-96231b3b80d8

docs/Makefile

@@ -16,10 +16,10 @@ DOXYGEN = doxygen
 
 $(PROJ_OBJ_DIR)/doxygen.cfg: doxygen.cfg.in
 	cat $< | sed \
-	  -e 's/@abs_top_srcdir@/../g' \
+	  -e 's/@abs_srcdir@/./g' \
 	  -e 's/@DOT@/dot/g' \
 	  -e 's/@PACKAGE_VERSION@/mainline/' \
-	  -e 's/@abs_top_builddir@/../g' > $@
+	  -e 's/@abs_builddir@/./g' > $@
 endif
 
 include $(CLANG_LEVEL)/Makefile

docs/doxygen.cfg.in

@@ -30,7 +30,7 @@ PROJECT_NUMBER         = @PACKAGE_VERSION@
 # If a relative path is entered, it will be relative to the location 
 # where doxygen was started. If left blank the current directory will be used.
 
-OUTPUT_DIRECTORY       = @abs_top_builddir@/docs/doxygen
+OUTPUT_DIRECTORY       = @abs_builddir@/doxygen
 
 # If the CREATE_SUBDIRS tag is set to YES, then doxygen will create 
 # 4096 sub-directories (in 2 levels) under the output directory of each output 
@@ -450,9 +450,9 @@ WARN_LOGFILE           =
 # directories like "/usr/src/myproject". Separate the files or directories 
 # with spaces.
 
-INPUT                  = @abs_top_srcdir@/include \
-                         @abs_top_srcdir@/lib \
-                         @abs_top_srcdir@/docs/doxygen.intro
+INPUT                  = @abs_srcdir@/../include \
+                         @abs_srcdir@/../lib \
+                         @abs_srcdir@/doxygen.intro
 
 # If the value of the INPUT tag contains directories, you can use the 
 # FILE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp 
@@ -493,7 +493,7 @@ EXCLUDE_PATTERNS       =
 # directories that contain example code fragments that are included (see 
 # the \include command).
 
-EXAMPLE_PATH           = @abs_top_srcdir@/examples
+EXAMPLE_PATH           = @abs_srcdir@/../examples
 
 # If the value of the EXAMPLE_PATH tag contains directories, you can use the 
 # EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp 
@@ -513,7 +513,7 @@ EXAMPLE_RECURSIVE      = YES
 # directories that contain image that are included in the documentation (see 
 # the \image command).
 
-IMAGE_PATH             = @abs_top_srcdir@/docs/img
+IMAGE_PATH             = @abs_srcdir@/img
 
 # The INPUT_FILTER tag can be used to specify a program that doxygen should 
 # invoke to filter for each input file. Doxygen will invoke the filter program 
@@ -636,13 +636,13 @@ HTML_FILE_EXTENSION    = .html
 # each generated HTML page. If it is left blank doxygen will generate a 
 # standard header.
 
-HTML_HEADER            = @abs_top_srcdir@/docs/doxygen.header
+HTML_HEADER            = @abs_srcdir@/doxygen.header
 
 # The HTML_FOOTER tag can be used to specify a personal HTML footer for 
 # each generated HTML page. If it is left blank doxygen will generate a 
 # standard footer.
 
-HTML_FOOTER            = @abs_top_srcdir@/docs/doxygen.footer
+HTML_FOOTER            = @abs_srcdir@/doxygen.footer
 
 # The HTML_STYLESHEET tag can be used to specify a user-defined cascading 
 # style sheet that is used by each HTML page. It can be used to 
@@ -651,7 +651,7 @@ HTML_FOOTER            = @abs_top_srcdir@/docs/doxygen.footer
 # the style sheet file to the HTML output directory, so don't put your own 
 # stylesheet in the HTML output directory as well, or it will be erased!
 
-HTML_STYLESHEET        = @abs_top_srcdir@/docs/doxygen.css
+HTML_STYLESHEET        = @abs_srcdir@/doxygen.css
 
 # If the HTML_ALIGN_MEMBERS tag is set to YES, the members of classes, 
 # files or namespaces will be aligned in HTML using tables. If set to