i2c: make input samplerate optional

[libsigrokdecode.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 759cd0e3aaef322fe46836d49979aa74c9720ea2..d03f9831b25eb48b4ad89edea00b81ea9fedb924 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -67,6 +67,10 @@ SR_LIB_VERSION_SET([SRD_LIB_VERSION], [4:0:0])
 
 AM_CONDITIONAL([WIN32], [test -z "${host_os##mingw*}" || test -z "${host_os##cygwin*}"])
 
+# Initialize pkg-config.
+# We require at least 0.22, as "Requires.private" behaviour changed there.
+PKG_PROG_PKG_CONFIG
+
 ############################
 ##  Package dependencies  ##
 ############################
@@ -123,6 +127,8 @@ SR_SEARCH_LIBS([SRD_EXTRA_LIBS], [pow], [m])
 
 AC_SYS_LARGEFILE
 
+AC_C_BIGENDIAN
+
 ##############################
 ##  Finalize configuration  ##
 ##############################