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authorEric S. Raymond <esr@thyrsus.com>2009-11-19 22:22:08 +0000
committerEric S. Raymond <esr@thyrsus.com>2009-11-19 22:22:08 +0000
commit8573a950c850eb01426400519b5400f52158961e (patch)
treebed85d1d24ae1ed7ec83c6ee8bcaa1b27bdb500d /INSTALL
parent96cdde3adcc4229f2228a1be76155ce622ba6b2c (diff)
downloadgpsd-8573a950c850eb01426400519b5400f52158961e.tar.gz
Document a dependency.
Diffstat (limited to 'INSTALL')
-rw-r--r--INSTALL4
1 files changed, 4 insertions, 0 deletions
diff --git a/INSTALL b/INSTALL
index b819bb4b..1306f372 100644
--- a/INSTALL
+++ b/INSTALL
@@ -5,6 +5,10 @@ are C and C++ compilers: C for the gpsd daemon itself and its client C
library, C++ for the C++ client-library wrapper. You will also
need autotools; automake 1.10 or later and autoconf 2.61 or later
+The code depends on one non-C99 feature: anonymous unions. We could
+eliminate these, but the cost would be source-level interface breakage
+if we have to move structure members in and out of unions.
+
Having the following optional components on your system will enable
various additional capabilities and extensions: