NMakefile: merge them into a single file [ci skip] (#902)

Also:

- allow to override `AR` and `ARFLAGS`.

- The extra `src` subdir in the target directory is no longer, to
  simplify things.

- gone the dynamically generated `objects.mk`. Now replaced with some
  tricky logic to do that inline.

- add necessary `LIBS` for WinCNG. (untested)

Lightly tested via clang-cl.

NMakefile

@@ -1,4 +1,56 @@
-!include "win32/config.mk"
+# Tweak these for your system
+!if "$(OPENSSLINC)" == ""
+OPENSSLINC=..\openssl\include
+!endif
+
+!if "$(OPENSSLLIB)" == ""
+OPENSSLLIB=..\openssl\lib
+!endif
+
+!if "$(ZLIBINC)" == ""
+ZLIBINC=..\zlib
+!endif
+
+!if "$(ZLIBLIB)" == ""
+ZLIBLIB=..\zlib
+!endif
+
+!if "$(TARGET)" == ""
+TARGET=Release
+!endif
+
+!if "$(TARGET)" == "Debug"
+SUFFIX=_debug
+CPPFLAGS=/Od /MDd
+DLLFLAGS=/DEBUG /LDd
+!else
+CPPFLAGS=/Oi /O2 /Oy /GF /Y- /MD /DNDEBUG
+DLLFLAGS=/DEBUG /LD
+!endif
+
+CPPFLAGS=/nologo /GL /Zi /EHsc $(CPPFLAGS) /Iwin32 /Iinclude
+
+!if "$(WITH_WINCNG)" == "1"
+CPPFLAGS=$(CPPFLAGS) /DLIBSSH2_WINCNG
+LIBS=ws2_32.lib crypt32.lib bcrypt.lib
+!else
+CPPFLAGS=$(CPPFLAGS) /DLIBSSH2_OPENSSL /I$(OPENSSLINC)
+LIBS=$(LIBS) $(OPENSSLLIB)\lib\crypto.lib $(OPENSSLLIB)\lib\ssl.lib
+!endif
+
+!if "$(WITH_ZLIB)" == "1"
+CPPFLAGS=$(CPPFLAGS) /DLIBSSH2_HAVE_ZLIB /I$(ZLIBINC)
+LIBS=$(LIBS) $(ZLIBLIB)\zlib.lib
+!endif
+
+CFLAGS=$(CPPFLAGS)
+RCFLAGS=/Iinclude
+DLLFLAGS=$(CFLAGS) $(DLLFLAGS)
+LIBS=$(LIBS) ws2_32.lib user32.lib advapi32.lib gdi32.lib
+
+INTDIR=$(TARGET)
+
+SUBDIR=src
 
 !if "$(WITH_WINCNG)" == "1"
 !include "Makefile.WinCNG.inc"
@@ -9,15 +61,53 @@
 
 OBJECTS=$(CSOURCES:.c=.obj)
 
-# SUBDIRS=src example
-SUBDIRS=src
+!if "$(TARGET)" == "Debug"
+OBJECTS=Debug/$(OBJECTS: = Debug/)
+OBJECTS=$(OBJECTS: Debug/ = )
+!else
+TARGET=Release
+OBJECTS=Release/$(OBJECTS: = Release/)
+OBJECTS=$(OBJECTS: Release/ = )
+!endif
 
-all-sub: win32\objects.mk
-	-for %D in ($(SUBDIRS)) do $(MAKE) /nologo /f %D/NMakefile BUILD=$(BUILD) SUBDIR=%D all-sub
+CFLAGS=$(CFLAGS)
+
+!if "$(AR)" == ""
+AR=lib
+ARFLAGS=-nologo /LTCG
+!endif
+
+RESOURCE=$(INTDIR)\libssh2.res
+DLL=libssh2$(SUFFIX).dll
+STATICLIB=$(INTDIR)\libssh2.lib
+
+!if "$(BUILD_STATIC_LIB)" == ""
+all: $(INTDIR) $(DLL)
+!else
+all: $(INTDIR) $(STATICLIB)
+!endif
+
+$(INTDIR):
+	@if not exist $(INTDIR) mkdir $(INTDIR)
+
+$(DLL): $(OBJECTS) $(RESOURCE)
+	$(CC) -o $(DLL) $(DLLFLAGS) $(OBJECTS) $(RESOURCE) $(LIBS)
+
+$(STATICLIB): $(OBJECTS)
+	$(AR) $(ARFLAGS) -out:$@ $(OBJECTS)
+
+$(RESOURCE): win32\libssh2.rc
+	$(RC) $(RCFLAGS) /Fo"$@" $?
+
+all-sub: $(INTDIR) all
+
+clean-sub: clean
+
+{$(SUBDIR)}.c{$(INTDIR)}.obj::
+	$(CC) -c $(CFLAGS) /Fo"$(INTDIR)\\" $<
 
 clean:
 	-rmdir 2>NUL /s/q $(TARGET)
-	-del 2>NUL win32\objects.mk
 
 real-clean vclean: clean
 	-del 2>NUL libssh2.dll
@@ -25,8 +115,3 @@ real-clean vclean: clean
 	-del 2>NUL libssh2.ilk
 	-del 2>NUL libssh2.lib
 	-del 2>NUL *.pdb
-
-win32\objects.mk: Makefile.inc
-	@echo OBJECTS = \>$@
-	@for %O in ($(OBJECTS)) do @echo $$(INTDIR)\%O \>>$@
-	@echo $$(EOL)>>$@

src/NMakefile

@@ -1,29 +0,0 @@
-!include "win32/config.mk"
-
-!include "win32/objects.mk"
-
-CFLAGS=$(CFLAGS)
-
-AR = lib
-ARFLAGS = -nologo /LTCG
-
-RESOURCE=$(INTDIR)\libssh2.res
-DLL=libssh2$(SUFFIX).dll
-STATICLIB=$(INTDIR)\libssh2.lib
-
-!if "$(BUILD_STATIC_LIB)" == ""
-all: $(DLL)
-!else
-all: $(STATICLIB)
-!endif
-
-$(DLL): $(OBJECTS) $(RESOURCE)
-	$(CC) -o $(DLL) $(DLLFLAGS) $(OBJECTS) $(RESOURCE) $(LIBS)
-
-$(STATICLIB): $(OBJECTS)
-	$(AR) $(ARFLAGS) -out:$@ $(OBJECTS)
-
-$(RESOURCE): win32\libssh2.rc
-	$(RC) $(RCFLAGS) /Fo"$@" $?
-
-!include "win32/rules.mk"

win32/.gitignore

@@ -1,13 +1,4 @@
-*.lib
-*.pdb
 *.dll
 *.exe
-*.obj
-.*.swp
 Debug
 Release
-*.exp
-*.ncb
-*.opt
-*.plg
-objects.mk

win32/config.mk

@@ -1,51 +0,0 @@
-# Tweak these for your system
-!if "$(OPENSSLINC)" == ""
-OPENSSLINC=..\openssl\include
-!endif
-
-!if "$(OPENSSLLIB)" == ""
-OPENSSLLIB=..\openssl\lib
-!endif
-
-!if "$(ZLIBINC)" == ""
-ZLIBINC=..\zlib
-!endif
-
-!if "$(ZLIBLIB)" == ""
-ZLIBLIB=..\zlib
-!endif
-
-!if "$(TARGET)" == ""
-TARGET=Release
-!endif
-
-!if "$(TARGET)" == "Debug"
-SUFFIX=_debug
-CPPFLAGS=/Od /MDd
-DLLFLAGS=/DEBUG /LDd
-!else
-CPPFLAGS=/Oi /O2 /Oy /GF /Y- /MD /DNDEBUG
-DLLFLAGS=/DEBUG /LD
-!endif
-
-CPPFLAGS=/nologo /GL /Zi /EHsc $(CPPFLAGS) /Iwin32 /Iinclude
-
-!if "$(WITH_WINCNG)" == "1"
-CPPFLAGS=$(CPPFLAGS) /DLIBSSH2_WINCNG
-# LIBS=bcrypt.lib crypt32.lib
-!else
-CPPFLAGS=$(CPPFLAGS) /DLIBSSH2_OPENSSL /I$(OPENSSLINC)
-LIBS=$(LIBS) $(OPENSSLLIB)\lib\crypto.lib $(OPENSSLLIB)\lib\ssl.lib
-!endif
-
-!if "$(WITH_ZLIB)" == "1"
-CPPFLAGS=$(CPPFLAGS) /DLIBSSH2_HAVE_ZLIB /I$(ZLIBINC)
-LIBS=$(LIBS) $(ZLIBLIB)\zlib.lib
-!endif
-
-CFLAGS=$(CPPFLAGS)
-RCFLAGS=/Iinclude
-DLLFLAGS=$(CFLAGS) $(DLLFLAGS)
-LIBS=$(LIBS) ws2_32.lib user32.lib advapi32.lib gdi32.lib
-
-INTDIR=$(TARGET)\$(SUBDIR)

win32/rules.mk

@@ -1,12 +0,0 @@
-all-sub: $(INTDIR) all
-
-clean-sub: clean
-
-$(INTDIR):
-!if "$(SRCDIR)" == ""
-	@if not exist $(TARGET) mkdir $(TARGET)
-!endif
-	@if not exist $(INTDIR) mkdir $(INTDIR)
-
-{$(SUBDIR)}.c{$(INTDIR)}.obj::
-	$(CC) -c $(CFLAGS) /Fo"$(INTDIR)\\" $<