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authorMartin Storsjö <martin@martin.st>2012-11-30 11:16:58 +0200
committerMartin Storsjö <martin@martin.st>2013-05-04 23:58:59 +0300
commit2cca96e670e78bb19eb0232469d5a27245e18c02 (patch)
tree5483815257266601c984dcdb3a2a909171e445a2
parent2b677ffca54a5fbef9c8860841c32f28ecd68f70 (diff)
configure: Check for getenv
When targeting the "windows store application" (metro) API subset (or the windows phone API subset), the getenv function isn't available. If it is unavailable, just define getenv to NULL. The check uses check_func_headers, since the function actually might exist in the libraries, but is hidden in the headers. The fallback is in config.h since msvc can't do -D defines with parameters on the command line, and it's used both within the libraries and the frontend applications (so a libavutil internal header wouldn't be enough). Signed-off-by: Martin Storsjö <martin@martin.st>
-rwxr-xr-xconfigure3
1 files changed, 3 insertions, 0 deletions
diff --git a/configure b/configure
index 5deb69ea0d..d165e68dff 100755
--- a/configure
+++ b/configure
@@ -3499,6 +3499,7 @@ check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
check_func fcntl
check_func fork
+check_func_headers stdlib.h getenv
check_func gethrtime
check_func getopt
check_func getrusage
@@ -4086,6 +4087,8 @@ if enabled yasm; then
printf '' >$TMPASM
fi
+enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
+
if enabled msvc && ! enabled shared; then
echo '#pragma comment(linker, "/include:"EXTERN_PREFIX"avpriv_strtod")' >> $TMPH
echo '#pragma comment(linker, "/include:"EXTERN_PREFIX"avpriv_snprintf")' >> $TMPH