Building boost with MSVC and SAFESEH

[Tobias Loew]

Hi,

when building boost on MSVC with SAFESEH (which is implicit on x64-builds) I get linking problems, since the MASM-compiler does not have the "safeseh" option on its command line. There is also a thread on boost/dev about this issue

​http://boost.2283326.n4.nabble.com/context-msvc-SAFESEH-td4652245.html

I could solve it by adding safeseh in the two files mentioned here:

in boost_1_56_0\libs\context\build\Jamfile.v2:

actions masm {

ml /safeseh /c /Fo"$(<)" "$(>)"

}

in boost_1_56_0\tools\build\src\tools\msvc.jam:

local default-assembler-i386 = "ml -coff -safeseh" ;

Could someone please add a boost-build-option to control the safeseh-setting.

Thanks

Tobias

[olli]

SAFESEH is irrelevant on x64 (Windows) systems because exception handlers are table-based (stored in PDATA) -> it is not implicit on x64 systems.

[Tobias Loew]

Please forget about the text in the parenthesis. The trouble occurs on MSVC 32-bit compilations when SAFESEH is enabled. I can confirm that linking only succeeds when I add "safeseh" to the ml options.

Tobias

[olli]

You are using MSVC which itself uses MASM to compile assembler files. If you require additional compiler flags than you have to apply those flags at b2/bjam command line (maybe cxxflags). If this does not work because /SAFESEH is not passed to MASM by MSVC than this is an issue of boost.build (and requires an feature request for boost.build).