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1 #!/bin/sh | |
2 | |
3 # These variables are automatically filled in by the configure script. | |
4 name="@PACKAGE_TARNAME@" | |
5 version="@PACKAGE_VERSION@" | |
6 | |
7 show_usage() | |
8 { | |
9 echo "Usage: gmock-config [OPTIONS...]" | |
10 } | |
11 | |
12 show_help() | |
13 { | |
14 show_usage | |
15 cat <<\EOF | |
16 | |
17 The `gmock-config' script provides access to the necessary compile and linking | |
18 flags to connect with Google C++ Mocking Framework, both in a build prior to | |
19 installation, and on the system proper after installation. The installation | |
20 overrides may be issued in combination with any other queries, but will only | |
21 affect installation queries if called on a built but not installed gmock. The | |
22 installation queries may not be issued with any other types of queries, and | |
23 only one installation query may be made at a time. The version queries and | |
24 compiler flag queries may be combined as desired but not mixed. Different | |
25 version queries are always combined with logical "and" semantics, and only the | |
26 last of any particular query is used while all previous ones ignored. All | |
27 versions must be specified as a sequence of numbers separated by periods. | |
28 Compiler flag queries output the union of the sets of flags when combined. | |
29 | |
30 Examples: | |
31 gmock-config --min-version=1.0 || echo "Insufficient Google Mock version." | |
32 | |
33 g++ $(gmock-config --cppflags --cxxflags) -o foo.o -c foo.cpp | |
34 g++ $(gmock-config --ldflags --libs) -o foo foo.o | |
35 | |
36 # When using a built but not installed Google Mock: | |
37 g++ $(../../my_gmock_build/scripts/gmock-config ...) ... | |
38 | |
39 # When using an installed Google Mock, but with installation overrides: | |
40 export GMOCK_PREFIX="/opt" | |
41 g++ $(gmock-config --libdir="/opt/lib64" ...) ... | |
42 | |
43 Help: | |
44 --usage brief usage information | |
45 --help display this help message | |
46 | |
47 Installation Overrides: | |
48 --prefix=<dir> overrides the installation prefix | |
49 --exec-prefix=<dir> overrides the executable installation prefix | |
50 --libdir=<dir> overrides the library installation prefix | |
51 --includedir=<dir> overrides the header file installation prefix | |
52 | |
53 Installation Queries: | |
54 --prefix installation prefix | |
55 --exec-prefix executable installation prefix | |
56 --libdir library installation directory | |
57 --includedir header file installation directory | |
58 --version the version of the Google Mock installation | |
59 | |
60 Version Queries: | |
61 --min-version=VERSION return 0 if the version is at least VERSION | |
62 --exact-version=VERSION return 0 if the version is exactly VERSION | |
63 --max-version=VERSION return 0 if the version is at most VERSION | |
64 | |
65 Compilation Flag Queries: | |
66 --cppflags compile flags specific to the C-like preprocessors | |
67 --cxxflags compile flags appropriate for C++ programs | |
68 --ldflags linker flags | |
69 --libs libraries for linking | |
70 | |
71 EOF | |
72 } | |
73 | |
74 # This function bounds our version with a min and a max. It uses some clever | |
75 # POSIX-compliant variable expansion to portably do all the work in the shell | |
76 # and avoid any dependency on a particular "sed" or "awk" implementation. | |
77 # Notable is that it will only ever compare the first 3 components of versions. | |
78 # Further components will be cleanly stripped off. All versions must be | |
79 # unadorned, so "v1.0" will *not* work. The minimum version must be in $1, and | |
80 # the max in $2. TODO(chandlerc@google.com): If this ever breaks, we should | |
81 # investigate expanding this via autom4te from AS_VERSION_COMPARE rather than | |
82 # continuing to maintain our own shell version. | |
83 check_versions() | |
84 { | |
85 major_version=${version%%.*} | |
86 minor_version="0" | |
87 point_version="0" | |
88 if test "${version#*.}" != "${version}"; then | |
89 minor_version=${version#*.} | |
90 minor_version=${minor_version%%.*} | |
91 fi | |
92 if test "${version#*.*.}" != "${version}"; then | |
93 point_version=${version#*.*.} | |
94 point_version=${point_version%%.*} | |
95 fi | |
96 | |
97 min_version="$1" | |
98 min_major_version=${min_version%%.*} | |
99 min_minor_version="0" | |
100 min_point_version="0" | |
101 if test "${min_version#*.}" != "${min_version}"; then | |
102 min_minor_version=${min_version#*.} | |
103 min_minor_version=${min_minor_version%%.*} | |
104 fi | |
105 if test "${min_version#*.*.}" != "${min_version}"; then | |
106 min_point_version=${min_version#*.*.} | |
107 min_point_version=${min_point_version%%.*} | |
108 fi | |
109 | |
110 max_version="$2" | |
111 max_major_version=${max_version%%.*} | |
112 max_minor_version="0" | |
113 max_point_version="0" | |
114 if test "${max_version#*.}" != "${max_version}"; then | |
115 max_minor_version=${max_version#*.} | |
116 max_minor_version=${max_minor_version%%.*} | |
117 fi | |
118 if test "${max_version#*.*.}" != "${max_version}"; then | |
119 max_point_version=${max_version#*.*.} | |
120 max_point_version=${max_point_version%%.*} | |
121 fi | |
122 | |
123 test $(($major_version)) -lt $(($min_major_version)) && exit 1 | |
124 if test $(($major_version)) -eq $(($min_major_version)); then | |
125 test $(($minor_version)) -lt $(($min_minor_version)) && exit 1 | |
126 if test $(($minor_version)) -eq $(($min_minor_version)); then | |
127 test $(($point_version)) -lt $(($min_point_version)) && exit 1 | |
128 fi | |
129 fi | |
130 | |
131 test $(($major_version)) -gt $(($max_major_version)) && exit 1 | |
132 if test $(($major_version)) -eq $(($max_major_version)); then | |
133 test $(($minor_version)) -gt $(($max_minor_version)) && exit 1 | |
134 if test $(($minor_version)) -eq $(($max_minor_version)); then | |
135 test $(($point_version)) -gt $(($max_point_version)) && exit 1 | |
136 fi | |
137 fi | |
138 | |
139 exit 0 | |
140 } | |
141 | |
142 # Show the usage line when no arguments are specified. | |
143 if test $# -eq 0; then | |
144 show_usage | |
145 exit 1 | |
146 fi | |
147 | |
148 while test $# -gt 0; do | |
149 case $1 in | |
150 --usage) show_usage; exit 0;; | |
151 --help) show_help; exit 0;; | |
152 | |
153 # Installation overrides | |
154 --prefix=*) GMOCK_PREFIX=${1#--prefix=};; | |
155 --exec-prefix=*) GMOCK_EXEC_PREFIX=${1#--exec-prefix=};; | |
156 --libdir=*) GMOCK_LIBDIR=${1#--libdir=};; | |
157 --includedir=*) GMOCK_INCLUDEDIR=${1#--includedir=};; | |
158 | |
159 # Installation queries | |
160 --prefix|--exec-prefix|--libdir|--includedir|--version) | |
161 if test -n "${do_query}"; then | |
162 show_usage | |
163 exit 1 | |
164 fi | |
165 do_query=${1#--} | |
166 ;; | |
167 | |
168 # Version checking | |
169 --min-version=*) | |
170 do_check_versions=yes | |
171 min_version=${1#--min-version=} | |
172 ;; | |
173 --max-version=*) | |
174 do_check_versions=yes | |
175 max_version=${1#--max-version=} | |
176 ;; | |
177 --exact-version=*) | |
178 do_check_versions=yes | |
179 exact_version=${1#--exact-version=} | |
180 ;; | |
181 | |
182 # Compiler flag output | |
183 --cppflags) echo_cppflags=yes;; | |
184 --cxxflags) echo_cxxflags=yes;; | |
185 --ldflags) echo_ldflags=yes;; | |
186 --libs) echo_libs=yes;; | |
187 | |
188 # Everything else is an error | |
189 *) show_usage; exit 1;; | |
190 esac | |
191 shift | |
192 done | |
193 | |
194 # These have defaults filled in by the configure script but can also be | |
195 # overridden by environment variables or command line parameters. | |
196 prefix="${GMOCK_PREFIX:-@prefix@}" | |
197 exec_prefix="${GMOCK_EXEC_PREFIX:-@exec_prefix@}" | |
198 libdir="${GMOCK_LIBDIR:-@libdir@}" | |
199 includedir="${GMOCK_INCLUDEDIR:-@includedir@}" | |
200 | |
201 # We try and detect if our binary is not located at its installed location. If | |
202 # it's not, we provide variables pointing to the source and build tree rather | |
203 # than to the install tree. We also locate Google Test using the configured | |
204 # gtest-config script rather than searching the PATH and our bindir for one. | |
205 # This allows building against a just-built gmock rather than an installed | |
206 # gmock. | |
207 bindir="@bindir@" | |
208 this_relative_bindir=`dirname $0` | |
209 this_bindir=`cd ${this_relative_bindir}; pwd -P` | |
210 if test "${this_bindir}" = "${this_bindir%${bindir}}"; then | |
211 # The path to the script doesn't end in the bindir sequence from Autoconf, | |
212 # assume that we are in a build tree. | |
213 build_dir=`dirname ${this_bindir}` | |
214 src_dir=`cd ${this_bindir}/@top_srcdir@; pwd -P` | |
215 | |
216 # TODO(chandlerc@google.com): This is a dangerous dependency on libtool, we | |
217 # should work to remove it, and/or remove libtool altogether, replacing it | |
218 # with direct references to the library and a link path. | |
219 gmock_libs="${build_dir}/lib/libgtest.la" | |
220 gmock_ldflags="" | |
221 | |
222 # We provide hooks to include from either the source or build dir, where the | |
223 # build dir is always preferred. This will potentially allow us to write | |
224 # build rules for generated headers and have them automatically be preferred | |
225 # over provided versions. | |
226 gmock_cppflags="-I${build_dir}/include -I${src_dir}/include" | |
227 gmock_cxxflags="" | |
228 | |
229 # Directly invoke the gtest-config script used during the build process. | |
230 gtest_config="@GTEST_CONFIG@" | |
231 else | |
232 # We're using an installed gmock, although it may be staged under some | |
233 # prefix. Assume (as our own libraries do) that we can resolve the prefix, | |
234 # and are present in the dynamic link paths. | |
235 gmock_ldflags="-L${libdir}" | |
236 gmock_libs="-l${name}" | |
237 gmock_cppflags="-I${includedir}" | |
238 gmock_cxxflags="" | |
239 | |
240 # We also prefer any gtest-config script installed in our prefix. Lacking | |
241 # one, we look in the PATH for one. | |
242 gtest_config="${bindir}/gtest-config" | |
243 if test ! -x "${gtest_config}"; then | |
244 gtest_config=`which gtest-config` | |
245 fi | |
246 fi | |
247 | |
248 # Ensure that we have located a Google Test to link against. | |
249 if ! test -x "${gtest_config}"; then | |
250 echo "Unable to locate Google Test, check your Google Mock configuration" \ | |
251 "and installation" >&2 | |
252 exit 1 | |
253 elif ! "${gtest_config}" "--exact-version=@GTEST_VERSION@"; then | |
254 echo "The Google Test found is not the same version as Google Mock was " \ | |
255 "built against" >&2 | |
256 exit 1 | |
257 fi | |
258 | |
259 # Add the necessary Google Test bits into the various flag variables | |
260 gmock_cppflags="${gmock_cppflags} `${gtest_config} --cppflags`" | |
261 gmock_cxxflags="${gmock_cxxflags} `${gtest_config} --cxxflags`" | |
262 gmock_ldflags="${gmock_ldflags} `${gtest_config} --ldflags`" | |
263 gmock_libs="${gmock_libs} `${gtest_config} --libs`" | |
264 | |
265 # Do an installation query if requested. | |
266 if test -n "$do_query"; then | |
267 case $do_query in | |
268 prefix) echo $prefix; exit 0;; | |
269 exec-prefix) echo $exec_prefix; exit 0;; | |
270 libdir) echo $libdir; exit 0;; | |
271 includedir) echo $includedir; exit 0;; | |
272 version) echo $version; exit 0;; | |
273 *) show_usage; exit 1;; | |
274 esac | |
275 fi | |
276 | |
277 # Do a version check if requested. | |
278 if test "$do_check_versions" = "yes"; then | |
279 # Make sure we didn't receive a bad combination of parameters. | |
280 test "$echo_cppflags" = "yes" && show_usage && exit 1 | |
281 test "$echo_cxxflags" = "yes" && show_usage && exit 1 | |
282 test "$echo_ldflags" = "yes" && show_usage && exit 1 | |
283 test "$echo_libs" = "yes" && show_usage && exit 1 | |
284 | |
285 if test "$exact_version" != ""; then | |
286 check_versions $exact_version $exact_version | |
287 # unreachable | |
288 else | |
289 check_versions ${min_version:-0.0.0} ${max_version:-9999.9999.9999} | |
290 # unreachable | |
291 fi | |
292 fi | |
293 | |
294 # Do the output in the correct order so that these can be used in-line of | |
295 # a compiler invocation. | |
296 output="" | |
297 test "$echo_cppflags" = "yes" && output="$output $gmock_cppflags" | |
298 test "$echo_cxxflags" = "yes" && output="$output $gmock_cxxflags" | |
299 test "$echo_ldflags" = "yes" && output="$output $gmock_ldflags" | |
300 test "$echo_libs" = "yes" && output="$output $gmock_libs" | |
301 echo $output | |
302 | |
303 exit 0 | |
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