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build: Silence gcc warning -Wformat-zero-length

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* configure.ac: Avoid useless gcc warning.  We use an empty string
quite often, for example in log_printhex.
This commit is contained in:
Werner Koch 2020-08-26 15:15:34 +02:00
parent 4699911f04
commit 90a87d96ea
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configure.ac
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@ -1620,6 +1620,7 @@ if test "$GCC" = yes; then
if test x"$_gcc_wopt" = xyes ; then if test x"$_gcc_wopt" = xyes ; then
mycflags="$mycflags -W -Wno-sign-compare -Wno-format-zero-length" mycflags="$mycflags -W -Wno-sign-compare -Wno-format-zero-length"
mycflags="$mycflags -Wno-missing-field-initializers" mycflags="$mycflags -Wno-missing-field-initializers"
mycflags="$mycflags -Wno-format-zero-length"
fi fi
AC_MSG_CHECKING([if gcc supports -Wdeclaration-after-statement]) AC_MSG_CHECKING([if gcc supports -Wdeclaration-after-statement])