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Allow float8, int8, and related datatypes to be passed by value on machines
where Datum is 8 bytes wide. Since this will break old-style C functions (those still using version 0 calling convention) that have arguments or results of these types, provide a configure option to disable it and retain the old pass-by-reference behavior. Likewise, provide a configure option to disable the recently-committed float4 pass-by-value change. Zoltan Boszormenyi, plus configurability stuff by me.
This commit is contained in:
Tom Lane
133
configure
vendored
133
configure
vendored
@ -1362,6 +1362,8 @@ Optional Features:
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--enable-cassert enable assertion checks (for debugging)
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--enable-thread-safety make client libraries thread-safe
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--enable-thread-safety-force force thread-safety despite thread test failure
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--disable-float4-byval disable float4 passed by value
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--disable-float8-byval disable float8 passed by value
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--disable-largefile omit support for large files
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Optional Packages:
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@ -20838,6 +20840,137 @@ _ACEOF
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# Decide whether float4 is passed by value: user-selectable, enabled by default
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{ echo "$as_me:$LINENO: checking whether to build with float4 passed by value" >&5
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echo $ECHO_N "checking whether to build with float4 passed by value... $ECHO_C" >&6; }
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pgac_args="$pgac_args enable_float4_byval"
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# Check whether --enable-float4-byval was given.
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if test "${enable_float4_byval+set}" = set; then
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enableval=$enable_float4_byval;
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case $enableval in
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yes)
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cat >>confdefs.h <<\_ACEOF
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#define USE_FLOAT4_BYVAL 1
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_ACEOF
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float4passbyval=true
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;;
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no)
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float4passbyval=false
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;;
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*)
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{ { echo "$as_me:$LINENO: error: no argument expected for --enable-float4-byval option" >&5
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echo "$as_me: error: no argument expected for --enable-float4-byval option" >&2;}
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{ (exit 1); exit 1; }; }
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;;
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esac
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else
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enable_float4_byval=yes
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cat >>confdefs.h <<\_ACEOF
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#define USE_FLOAT4_BYVAL 1
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_ACEOF
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float4passbyval=true
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fi
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{ echo "$as_me:$LINENO: result: $enable_float4_byval" >&5
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echo "${ECHO_T}$enable_float4_byval" >&6; }
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cat >>confdefs.h <<_ACEOF
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#define FLOAT4PASSBYVAL $float4passbyval
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_ACEOF
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# Decide whether float8 is passed by value.
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# Note: this setting also controls int8 and related types such as timestamp.
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# If sizeof(Datum) >= 8, this is user-selectable, enabled by default.
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# If not, trying to select it is an error.
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{ echo "$as_me:$LINENO: checking whether to build with float8 passed by value" >&5
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echo $ECHO_N "checking whether to build with float8 passed by value... $ECHO_C" >&6; }
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if test $ac_cv_sizeof_unsigned_long -ge 8 ; then
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pgac_args="$pgac_args enable_float8_byval"
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# Check whether --enable-float8-byval was given.
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if test "${enable_float8_byval+set}" = set; then
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enableval=$enable_float8_byval;
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case $enableval in
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yes)
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:
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;;
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no)
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:
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;;
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*)
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{ { echo "$as_me:$LINENO: error: no argument expected for --enable-float8-byval option" >&5
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echo "$as_me: error: no argument expected for --enable-float8-byval option" >&2;}
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{ (exit 1); exit 1; }; }
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;;
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esac
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else
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enable_float8_byval=yes
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fi
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else
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pgac_args="$pgac_args enable_float8_byval"
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# Check whether --enable-float8-byval was given.
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if test "${enable_float8_byval+set}" = set; then
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enableval=$enable_float8_byval;
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case $enableval in
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yes)
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:
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;;
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no)
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:
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;;
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*)
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{ { echo "$as_me:$LINENO: error: no argument expected for --enable-float8-byval option" >&5
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echo "$as_me: error: no argument expected for --enable-float8-byval option" >&2;}
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{ (exit 1); exit 1; }; }
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;;
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esac
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else
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enable_float8_byval=no
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fi
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if test "$enable_float8_byval" = yes ; then
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{ { echo "$as_me:$LINENO: error: --enable-float8-byval is not supported on 32-bit platforms." >&5
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echo "$as_me: error: --enable-float8-byval is not supported on 32-bit platforms." >&2;}
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{ (exit 1); exit 1; }; }
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fi
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fi
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if test "$enable_float8_byval" = yes ; then
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cat >>confdefs.h <<\_ACEOF
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#define USE_FLOAT8_BYVAL 1
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_ACEOF
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float8passbyval=true
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else
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float8passbyval=false
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fi
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{ echo "$as_me:$LINENO: result: $enable_float8_byval" >&5
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echo "${ECHO_T}$enable_float8_byval" >&6; }
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cat >>confdefs.h <<_ACEOF
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#define FLOAT8PASSBYVAL $float8passbyval
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_ACEOF
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# Determine memory alignment requirements for the basic C data types.
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{ echo "$as_me:$LINENO: checking for short" >&5
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