doc: Fix section of functions age(xid) and mxid_age(xid)
[pgsql.git] / Makefile
blob8a2ec9396b6b446362e6af3ca022a87d80bd1574
1 # The PostgreSQL make files exploit features of GNU make that other
2 # makes do not have. Because it is a common mistake for users to try
3 # to build Postgres with a different make, we have this make file
4 # that, as a service, will look for a GNU make and invoke it, or show
5 # an error message if none could be found.
7 # If the user were using GNU make now, this file would not get used
8 # because GNU make uses a make file named "GNUmakefile" in preference
9 # to "Makefile" if it exists. PostgreSQL is shipped with a
10 # "GNUmakefile". If the user hasn't run the configure script yet, the
11 # GNUmakefile won't exist yet, so we catch that case as well.
14 # AIX make defaults to building *every* target of the first rule. Start with
15 # a single-target, empty rule to make the other targets non-default.
16 # (We don't support AIX anymore, but if someone tries to build on AIX anyway,
17 # at least they'll get the instructions to run 'configure' first.)
18 all:
20 all check install installdirs installcheck installcheck-parallel uninstall clean distclean maintainer-clean dist distcheck world check-world install-world installcheck-world:
21 @if [ ! -f GNUmakefile ] ; then \
22 echo "You need to run the 'configure' program first. Please see"; \
23 echo "<https://www.postgresql.org/docs/devel/installation.html>" ; \
24 false ; \
26 @IFS=':' ; \
27 for dir in $$PATH; do \
28 for prog in gmake gnumake make; do \
29 if [ -f $$dir/$$prog ] && ( $$dir/$$prog -f /dev/null --version 2>/dev/null | grep GNU >/dev/null 2>&1 ) ; then \
30 GMAKE=$$dir/$$prog; \
31 break 2; \
32 fi; \
33 done; \
34 done; \
36 if [ x"$${GMAKE+set}" = xset ]; then \
37 echo "Using GNU make found at $${GMAKE}"; \
38 unset MAKELEVEL; \
39 $${GMAKE} $@ ; \
40 else \
41 echo "You must use GNU make to build PostgreSQL." ; \
42 false; \