From: Jerzy Klejnowski Newsgroups: comp.os.msdos.djgpp Subject: Make, suffix rules and pattern rules. Date: Wed, 01 Nov 2000 04:25:53 +0100 Organization: samotnik w swoim zamku Lines: 44 Message-ID: <39FF8D41.BB16E9F6@polbox.com> NNTP-Posting-Host: pc47.wroclaw.ppp.tpnet.pl Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Trace: news.tpi.pl 973045557 12979 212.160.40.47 (1 Nov 2000 02:25:57 GMT) X-Complaints-To: usenet AT tpi DOT pl NNTP-Posting-Date: 1 Nov 2000 02:25:57 GMT X-Mailer: Mozilla 4.07 [en] (X11; I; Linux 2.0.36 i686) To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com Hi! Maybe I don't understand 'make' documentation, but some things I've tried seems to behave opposite to what I've read in it. The documentation says: "Suffix rules cannot have any prerequisites of their own. If they have any, they are treated as normal files with funny names, not as suffix rules." And below that doc shows an example for '%.o: %.c foo.h' pattern rule "which tells how to make `.o' files from `.c' files, and makes all `.o' files using this pattern rule also depend on `foo.h'." But pattern rule does not work for me, while suffix rule does... Here's part of my makefile: ---- SHELL = bash CFLAGS = -many -many -options .SUFFIXES : .SUFFIXES : .o .c .h {various rules} @echo $< @$(CC) -c $(CFLAGS) $< -o $@ ---- The results are: {various rules} what 'make' does ------------------ ----------------- 1 %.o : %.c uses my rule 2 %.o : %.c header.h uses predefined rule 3 .c.o : uses my rule 4 .c.o : header.h uses my rule Can anybody explain it? Did I misunderstand the docs? Thanks in advance. HARY