Hi You can have some times specific flags that it must be obligatory used. declare flags stored ENV not working ... Do not think that ./configure --help show exactly same all packages; different with each package , (is not an help how to use 'configure' generally) make ./configure --help 2 different packages source you understand probably you build Is working well with using Gnu compiler ?
I believe -fasm-blocks allows the compiler to recognize "MS style" asm blocks, as opposed to the standard gcc style asm statements. Among the possibilities are that there are some problems with the asm code, or there may be some confusion if there is some mixing of asm styles in the same file, but I'm not really sure. Can you post some more info, like some of the actual errors or better yet a reproducible test case?