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Commitcbd015d

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Extend pg_config to be able to report the build-time values of CC,
CPPFLAGS, CFLAGS, CFLAGS_SL, LDFLAGS, LDFLAGS_SL, and LIBS. Change itso that invoking pg_config with no arguments reports all availableinformation, rather than just giving an error message. Per discussion.
1 parentc7bba5e commitcbd015d

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4 files changed

+372
-81
lines changed

4 files changed

+372
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lines changed

‎doc/src/sgml/ref/pg_config-ref.sgml

Lines changed: 89 additions & 15 deletions
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,4 @@
1-
<!-- $PostgreSQL: pgsql/doc/src/sgml/ref/pg_config-ref.sgml,v 1.20 2005/06/0918:15:05 petere Exp $ -->
1+
<!-- $PostgreSQL: pgsql/doc/src/sgml/ref/pg_config-ref.sgml,v 1.21 2005/08/0922:47:03 tgl Exp $ -->
22

33
<refentry id="app-pgconfig">
44
<refmeta>
@@ -19,16 +19,7 @@
1919
<refsynopsisdiv>
2020
<cmdsynopsis>
2121
<command>pg_config</command>
22-
<group choice="req" rep="repeat">
23-
<arg>--bindir</arg>
24-
<arg>--includedir</arg>
25-
<arg>--includedir-server</arg>
26-
<arg>--libdir</arg>
27-
<arg>--pkglibdir</arg>
28-
<arg>--pgxs</arg>
29-
<arg>--configure</arg>
30-
<arg>--version</arg>
31-
</group>
22+
<arg rep="repeat"><replaceable>option</replaceable></arg>
3223
</cmdsynopsis>
3324
</refsynopsisdiv>
3425

@@ -48,7 +39,8 @@
4839
<title>Options</title>
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5041
<para>
51-
To use <application>pg_config</>, supply one or more of the following options:
42+
To use <application>pg_config</>, supply one or more of the following
43+
options:
5244
<variablelist>
5345
<varlistentry>
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<term><option>--bindir</option></>
@@ -124,18 +116,93 @@
124116
</listitem>
125117
</varlistentry>
126118

119+
<varlistentry>
120+
<term><option>--cc</option></>
121+
<listitem>
122+
<para>
123+
Print the value of the CC macro that was used for building
124+
<productname>PostgreSQL</>. This shows the C compiler used.
125+
</para>
126+
</listitem>
127+
</varlistentry>
128+
129+
<varlistentry>
130+
<term><option>--cppflags</option></>
131+
<listitem>
132+
<para>
133+
Print the value of the CPPFLAGS macro that was used for building
134+
<productname>PostgreSQL</>. This shows C compiler switches needed
135+
at preprocessing time (typically, <literal>-I</> switches).
136+
</para>
137+
</listitem>
138+
</varlistentry>
139+
140+
<varlistentry>
141+
<term><option>--cflags</option></>
142+
<listitem>
143+
<para>
144+
Print the value of the CFLAGS macro that was used for building
145+
<productname>PostgreSQL</>. This shows C compiler switches.
146+
</para>
147+
</listitem>
148+
</varlistentry>
149+
150+
<varlistentry>
151+
<term><option>--cflags_sl</option></>
152+
<listitem>
153+
<para>
154+
Print the value of the CFLAGS_SL macro that was used for building
155+
<productname>PostgreSQL</>. This shows extra C compiler switches
156+
used for building shared libraries.
157+
</para>
158+
</listitem>
159+
</varlistentry>
160+
161+
<varlistentry>
162+
<term><option>--ldflags</option></>
163+
<listitem>
164+
<para>
165+
Print the value of the LDFLAGS macro that was used for building
166+
<productname>PostgreSQL</>. This shows linker switches.
167+
</para>
168+
</listitem>
169+
</varlistentry>
170+
171+
<varlistentry>
172+
<term><option>--ldflags_sl</option></>
173+
<listitem>
174+
<para>
175+
Print the value of the LDFLAGS_SL macro that was used for building
176+
<productname>PostgreSQL</>. This shows linker switches
177+
used for building shared libraries.
178+
</para>
179+
</listitem>
180+
</varlistentry>
181+
182+
<varlistentry>
183+
<term><option>--libs</option></>
184+
<listitem>
185+
<para>
186+
Print the value of the LIBS macro that was used for building
187+
<productname>PostgreSQL</>. This normally contains <literal>-l</>
188+
switches for external libraries linked into <productname>PostgreSQL</>.
189+
</para>
190+
</listitem>
191+
</varlistentry>
192+
127193
<varlistentry>
128194
<term><option>--version</option></>
129195
<listitem>
130196
<para>
131-
Print the version of <productname>PostgreSQL</> and exit.
197+
Print the version of <productname>PostgreSQL</>.
132198
</para>
133199
</listitem>
134200
</varlistentry>
135201
</variablelist>
136202

137-
If more than one option (except for <option>--version</>) is given, the
138-
information is printed in that order, one item per line.
203+
If more than one option is given, the information is printed in that order,
204+
one item per line. If no options are given, all available information
205+
is printed, with labels.
139206
</para>
140207
</refsect1>
141208

@@ -152,6 +219,13 @@
152219
exit status to see whether it succeeded.
153220
</para>
154221

222+
<para>
223+
The options <option>--cc</option>, <option>--cppflags</option>,
224+
<option>--cflags</option>, <option>--cflags_sl</option>,
225+
<option>--ldflags</option>, <option>--ldflags_sl</option>,
226+
and <option>--libs</option> are new in <productname>PostgreSQL</> 8.1.
227+
</para>
228+
155229
<para>
156230
In releases prior to <productname>PostgreSQL</> 7.1, before
157231
<command>pg_config</command> came to be, a method for finding the

‎src/bin/pg_config/Makefile

Lines changed: 14 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -4,7 +4,7 @@
44
#
55
# Copyright (c) 1998-2005, PostgreSQL Global Development Group
66
#
7-
# $PostgreSQL: pgsql/src/bin/pg_config/Makefile,v 1.14 2005/01/20 22:54:57 neilc Exp $
7+
# $PostgreSQL: pgsql/src/bin/pg_config/Makefile,v 1.15 2005/08/09 22:47:03 tgl Exp $
88
#
99
#-------------------------------------------------------------------------
1010

@@ -15,7 +15,19 @@ include $(top_builddir)/src/Makefile.global
1515

1616
OBJS= pg_config.o$(WIN32RES)
1717

18-
overrideCPPFLAGS := -DFRONTEND -I$(libpq_srcdir) -DVAL_CONFIGURE="\"$(configure_args)\""$(CPPFLAGS)
18+
# don't include subdirectory-path-dependent -I and -L switches
19+
STD_CPPFLAGS :=$(filter-out -I$(top_srcdir)/src/include -I$(top_builddir)/src/include,$(CPPFLAGS))
20+
STD_LDFLAGS :=$(filter-out -L$(top_builddir)/src/port,$(LDFLAGS))
21+
22+
overrideCPPFLAGS += -DFRONTEND
23+
overrideCPPFLAGS += -DVAL_CONFIGURE="\"$(configure_args)\""
24+
overrideCPPFLAGS += -DVAL_CC="\"$(CC)\""
25+
overrideCPPFLAGS += -DVAL_CPPFLAGS="\"$(STD_CPPFLAGS)\""
26+
overrideCPPFLAGS += -DVAL_CFLAGS="\"$(CFLAGS)\""
27+
overrideCPPFLAGS += -DVAL_CFLAGS_SL="\"$(CFLAGS_SL)\""
28+
overrideCPPFLAGS += -DVAL_LDFLAGS="\"$(STD_LDFLAGS)\""
29+
overrideCPPFLAGS += -DVAL_LDFLAGS_SL="\"$(LDFLAGS_SL)\""
30+
overrideCPPFLAGS += -DVAL_LIBS="\"$(LIBS)\""
1931

2032
all: submake-libpgport pg_config
2133

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