Remove doc.am and move gc.man to base folder

(refactoring)

This is to eliminate non-dist-doc files in doc folder.

* CMakeLists.txt [enable_docs] (doc/gc.man): Rename to gc.man.
* Makefile.am [ENABLE_DOCS] (dist_man3_MANS): Likewise.
* Makefile.direct (BSD-pkg-install): Likewise.
* Makefile.am: Do not include doc/doc.am.
* Makefile.am [ENABLE_DOCS] (dist_doc_DATA, dist_man3_MANS): Copy
assignment from doc.am.
* doc/doc.am: Remove.
* doc/gc.man: Rename to gc.man.

5 files changed, 45 insertions, 57 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 495a1c7b..82f3ec1d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -730,8 +730,7 @@ if (enable_docs)
             PATTERN "README.*"
             PATTERN "*.md")
 
-  install(FILES doc/gc.man DESTINATION "${CMAKE_INSTALL_MANDIR}/man3"
-          RENAME gc.3)
+  install(FILES gc.man DESTINATION "${CMAKE_INSTALL_MANDIR}/man3" RENAME gc.3)
 endif(enable_docs)
 
 # CMake config/targets files.
diff --git a/Makefile.am b/Makefile.am
index a8f690c3..0859fecd 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -206,9 +206,51 @@ EXTRA_DIST += tools/if_mach.c tools/if_not_there.c tools/setjmp_t.c \
 include include/include.am
 include cord/cord.am
 include tests/tests.am
-include doc/doc.am
+
 ## Putting these at the top causes cord to be built first, and not find
 ## libgc.a on HP/UX.  There may be a better fix.
 
+# Installed documentation.
+if ENABLE_DOCS
+dist_doc_DATA = \
+    AUTHORS \
+    LICENSE \
+    README.md \
+    doc/README.DGUX386 \
+    doc/README.Mac \
+    doc/README.OS2 \
+    doc/README.aix \
+    doc/README.amiga \
+    doc/README.arm.cross \
+    doc/README.autoconf \
+    doc/README.cmake \
+    doc/README.cords \
+    doc/README.darwin \
+    doc/README.emscripten \
+    doc/README.environment \
+    doc/README.ews4800 \
+    doc/README.hp \
+    doc/README.linux \
+    doc/README.macros \
+    doc/README.sgi \
+    doc/README.solaris2 \
+    doc/README.symbian \
+    doc/README.uts \
+    doc/README.win32 \
+    doc/README.win64 \
+    doc/debugging.md \
+    doc/finalization.md \
+    doc/gcdescr.md \
+    doc/gcinterface.md \
+    doc/leak.md \
+    doc/overview.md \
+    doc/porting.md \
+    doc/scale.md \
+    doc/simple_example.md \
+    doc/tree.md
+
+dist_man3_MANS = gc.man
+endif
+
 # A dummy target for mono build.
 test-bundle:
diff --git a/Makefile.direct b/Makefile.direct
index 4fc87dcd..b39c1f66 100644
--- a/Makefile.direct
+++ b/Makefile.direct
@@ -176,7 +176,7 @@ BSD-pkg-install: BSD-pkg-all
 	${CP} bsd-libgctba.a libgctba.a
 	${INSTALL_DATA} libgctba.a ${PREFIX}/lib
 	${INSTALL_DATA} gc.h gc_cpp.h ${PREFIX}/include
-	${INSTALL_MAN} doc/gc.man ${PREFIX}/man/man3/gc.3
+	${INSTALL_MAN} gc.man ${PREFIX}/man/man3/gc.3
 
 pcr: PCR-Makefile include/private/gc_private.h include/private/gc_hdrs.h \
   include/private/gc_locks.h include/gc.h include/private/gcconfig.h \
diff --git a/doc/doc.am b/doc/doc.am
deleted file mode 100644
index 9ec638d4..00000000
--- a/doc/doc.am
+++ /dev/null
@@ -1,53 +0,0 @@
-#
-# THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
-# OR IMPLIED.  ANY USE IS AT YOUR OWN RISK.
-#
-# Permission is hereby granted to use or copy this program
-# for any purpose,  provided the above notices are retained on all copies.
-# Permission to modify the code and to distribute modified code is granted,
-# provided the above notices are retained, and a notice that the code was
-# modified is included with the above copyright notice.
-
-## Process this file with automake to produce Makefile.in.
-
-# installed documentation
-if ENABLE_DOCS
-dist_doc_DATA = \
-        AUTHORS \
-        LICENSE \
-        README.md \
-        doc/README.DGUX386 \
-        doc/README.Mac \
-        doc/README.OS2 \
-        doc/README.aix \
-        doc/README.amiga \
-        doc/README.arm.cross \
-        doc/README.autoconf \
-        doc/README.cmake \
-        doc/README.cords \
-        doc/README.darwin \
-        doc/README.emscripten \
-        doc/README.environment \
-        doc/README.ews4800 \
-        doc/README.hp \
-        doc/README.linux \
-        doc/README.macros \
-        doc/README.sgi \
-        doc/README.solaris2 \
-        doc/README.symbian \
-        doc/README.uts \
-        doc/README.win32 \
-        doc/README.win64 \
-        doc/debugging.md \
-        doc/finalization.md \
-        doc/gcdescr.md \
-        doc/gcinterface.md \
-        doc/leak.md \
-        doc/overview.md \
-        doc/porting.md \
-        doc/scale.md \
-        doc/simple_example.md \
-        doc/tree.md
-
-dist_man3_MANS = doc/gc.man
-endif
diff --git a/doc/gc.man b/gc.man
index 640bd511..640bd511 100644
--- a/doc/gc.man
+++ b/gc.man