GNU make release 3.77.

1 files changed, 61 insertions, 0 deletions

diff --git a/README.W32 b/README.W32
index ac5001d9..ca7f32c6 100644
--- a/README.W32
+++ b/README.W32
@@ -46,6 +46,35 @@ GNU make and sh.exe:
 	freely available. It may be available someday, but I am not in control
 	of this decision nor do I influence it. Sorry!
 
+GNU make and Cygnus GNU WIN32 tools (BATCH_MODE_ONLY_SHELL)
+
+	GNU make now has support for the Cygnus GNU WIN32 toolset. The
+	GNU WIN32 version of Bourne shell does not behave well when
+	invoked as 'sh -c' from CreateProcess().  The main problem is it
+	seems to have a hard time handling quoted strings correctly. This
+	problem goes away when invoking the Cygnus shell on a shell script.
+
+	To work around this difficulty, this version of make supports
+	a new batch mode.  When BATCH_MODE_ONLY_SHELL is defined at compile
+	time, make forces all command lines to be executed via script
+	files instead of by command line.
+
+	A native WIN32 system with no Bourne shell will also run
+	in batch mode.  All command lines will be put into batch files
+	and executed via $(COMSPEC) (%COMSPEC%).
+
+	If you wish to use Cygnus' GNUWIN32 shell, be sure you define
+	BATCH_MODE_ONLY_SHELL in the config.h.W32 prior to building make.
+	The new feataure was tested with the b18 version of the Cygnus
+	user tools.
+
+GNU make and MKS shell
+
+	There is now semi-official support for the MKS shell. To turn this
+	support on, define HAVE_MKS_SHELL in the config.h.W32 before you
+	build make.  Do not define BATCH_MODE_ONLY_SHELL if you turn
+	on HAVE_MKS_SHELL.
+
 GNU make handling of drive letters in pathnames (PATH, vpath, VPATH):
 
 	There is a caveat that should be noted with respect to handling
@@ -127,6 +156,38 @@ Pathnames and white space:
 	and you are free to take a crack at making this work. The code
 	in w32/pathstuff.c and vpath.c would be the places to start.
 
+Pathnames and Case insensitivity:
+
+	Unlike Unix, Windows 95/NT systems are case insensitive but case
+	preserving.  For example if you tell the file system to create a
+	file named "Target", it will preserve the case.  Subsequent access to
+	the file with other case permutations will succeed (i.e. opening a
+	file named "target" or "TARGET" will open the file "Target").
+
+	By default, GNU make retains its case sensitivity when comparing
+	target names and existing files or directories.  It can be
+	configured, however, into a case preserving and case insensitive
+	mode by adding a define for HAVE_CASE_INSENSITIVE_FS to
+	config.h.W32.
+
+	For example, the following makefile will create a file named
+	Target in the directory subdir which will subsequently be used
+	to satisfy the dependency of SUBDIR/DepTarget on SubDir/TARGET.
+	Without HAVE_CASE_INSENSITIVE_FS configured, the dependency link
+	will not be made:
+
+	subdir/Target:
+		touch $@
+
+	SUBDIR/DepTarget: SubDir/TARGET
+		cp $^ $@
+
+	Reliance on this behavior also eliminates the ability of GNU make
+	to use case in comparison of matching rules.  For example, it is
+	not possible to set up a C++ rule using %.C that is different
+	than a C rule using %.c.  GNU make will consider these to be the
+	same rule and will issue a warning.
+
 SAMBA/NTFS/VFAT:
 
 	I have not had any success building the debug version of this