44 lines
1.9 KiB
Diff
44 lines
1.9 KiB
Diff
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Enable -Wformat and -Wformat-security by default.
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--- a/gcc/c-family/c.opt
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+++ b/gcc/c-family/c.opt
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@@ -412,7 +412,7 @@ C ObjC C++ ObjC++ Var(warn_format_nonliteral) Warning LangEnabledBy(C ObjC C++ O
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Warn about format strings that are not literals
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Wformat-security
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-C ObjC C++ ObjC++ Var(warn_format_security) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 2, 0)
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+C ObjC C++ ObjC++ Var(warn_format_security) Init(1) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 2, 0)
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Warn about possible security problems with format functions
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Wformat-y2k
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@@ -424,7 +424,7 @@ C ObjC C++ ObjC++ Var(warn_format_zero_length) Warning LangEnabledBy(C ObjC C++
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Warn about zero-length formats
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Wformat=
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-C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_format) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall, 1, 0)
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+C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_format) Init(1) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall, 1, 0)
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Warn about printf/scanf/strftime/strfmon format string anomalies
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Wignored-qualifiers
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--- a/gcc/doc/gcc.info
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+++ b/gcc/doc/gcc.info
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@@ -3451,6 +3451,8 @@ compiler warns that an unrecognized option is present.
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'-Wno-format-contains-nul', '-Wno-format-extra-args', and
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'-Wno-format-zero-length'. '-Wformat' is enabled by '-Wall'.
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+ This option is enabled by default in Alpine Linux.
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+
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'-Wno-format-contains-nul'
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If '-Wformat' is specified, do not warn about format strings
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that contain NUL bytes.
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@@ -3496,6 +3498,8 @@ compiler warns that an unrecognized option is present.
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future warnings may be added to '-Wformat-security' that are
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not included in '-Wformat-nonliteral'.)
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+ This option is enabled by default in Alpine Linux.
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+
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'-Wformat-y2k'
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If '-Wformat' is specified, also warn about 'strftime' formats
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that may yield only a two-digit year.
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