New: Switching toolchain does not work

https://bugs.busybox.net/show_bug.cgi?id=11181

Bug ID: 11181
Summary: Switching toolchain does not work
Product: buildroot
Version: 2018.05
Hardware: All
OS: Linux
Status: NEW
Severity: normal
Priority: P5
Component: Other
Assignee: unassigned at buildroot.uclibc.org
Reporter: buildroot at cookiesoft.de
CC: buildroot at uclibc.org
Target Milestone: ---

I build several kernels for debugging purpose.
For this I need the gcc7 and gcc4, but when I switch the compiler in the toolchain menu, it won't use the selected compiler.

Steps to reproduce.
make menuconfig
-> toolchain
-> GCC compiler Version
gcc 4.9.x
-> Exit and Save
make

make menuconfig
-> toolchain
-> GCC compiler Version
gcc 7.x
-> Exit and Save
make (note, this works!)

make menuconfig
-> toolchain
-> GCC compiler Version
gcc 4.9.x
-> Exit and Save
make (now it builds with gcc 7)

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https://bugs.busybox.net/show_bug.cgi?id=11181

Thomas Petazzoni <[email protected]> changed:

What |Removed |Added
----------------------------------------------------------------------------

             Status|NEW                         |RESOLVED
         Resolution|---                         |WONTFIX

--- Comment #1 from Thomas Petazzoni <[email protected]> --- Not a bug: you need to do a full rebuild. This is documented at
https://buildroot.org/downloads/manual/manual.html#full-rebuild

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