win32/GNUmakefile: use pattern rules to build the miniperl objects

This adds implicit dependencies between the objects and their sources
so that touching the .c file and rebuilding rebuilds the miniperl
object and executable.

diff --git a/win32/GNUmakefile b/win32/GNUmakefile
index 4596143..41bd114 100644 (file)
--- a/win32/GNUmakefile
+++ b/win32/GNUmakefile
@@ -1436,11 +1436,15 @@ endif
 #separate line since this is sentinal that this target is done
        @rem. > $(MINIDIR)\.exists
 
+$(MINIDIR)\\%$(o): %.c
+       $(CC) -c -I$(MINIDIR) $(CFLAGS) $(MINIBUILDOPT) -DPERL_EXTERNAL_GLOB -DPERL_IS_MINIPERL $(OBJOUT_FLAG)$@ $(PDBOUT) $<
+
+$(MINIDIR)\\%$(o): ..\%.c
+       $(CC) -c -I$(MINIDIR) $(CFLAGS) $(MINIBUILDOPT) -DPERL_EXTERNAL_GLOB -DPERL_IS_MINIPERL $(OBJOUT_FLAG)$@ $(PDBOUT) $<
+
 $(MINICORE_OBJ) : $(CORE_NOCFG_H)
-       $(CC) -c -I$(MINIDIR) $(CFLAGS) $(MINIBUILDOPT) -DPERL_EXTERNAL_GLOB -DPERL_IS_MINIPERL $(OBJOUT_FLAG)$@ $(PDBOUT) ..\$(*F).c
 
 $(MINIWIN32_OBJ) : $(CORE_NOCFG_H)
-       $(CC) -c -I$(MINIDIR) $(CFLAGS) $(MINIBUILDOPT) -DPERL_IS_MINIPERL $(OBJOUT_FLAG)$@ $(PDBOUT) $(*F).c
 
 # -DPERL_IMPLICIT_SYS needs C++ for perllib.c
 # rules wrapped in .IFs break Win9X build (we end up with unbalanced []s
@@ -1454,9 +1458,7 @@ else
        $(CC) -c -I. $(CFLAGS_O) $(OBJOUT_FLAG)$@ $(PDBOUT) perllib.c
 endif
 
-# 1. we don't want to rebuild miniperl.exe when config.h changes
-# 2. we don't want to rebuild miniperl.exe with non-default config.h
-# 3. we can't have miniperl.exe depend on git_version.h, as miniperl creates it
+# We can't have miniperl.exe depend on git_version.h, as miniperl creates it
 $(MINI_OBJ)    : $(MINIDIR)\.exists $(CORE_NOCFG_H)
 
 $(WIN32_OBJ)   : $(CORE_H)