On 6/12/22 Richard Shaw wrote:
So I run into this occasionally and it's still not clear to me. In this
specific case I'm trying to build nanomq[1] and I get the following error:
/usr/bin/ld: CMakeFiles/nano_test.dir/test.c.o: relocation R_X86_64_32 against
`.rodata' can not be used when making a PIE object; recompile with -fPIE
Please post a recipe to reproduce those complaints:
the .spec file (or URL), other context for building, etc.
When I build according to README.md at https://github.com/emqx/nanomq
"Building From Source", without Ninja:
git clone https://github.com/emqx/nanomq.git ; cd nanomq
git submodule update --init --recursive
mkdir build && cd build
cmake ..
make
then I see no complaints from /usr/bin/ld.
The software package itself is low quality. gcc complains dozens of
serious errors such as:
nng/src/nng.c:2269:1: warning: control reaches end of non-void function
[-Wreturn-type]
nng/src/sp/protocol/mqtt/nmq_mqtt.c:271:51: warning: cast to pointer from
integer of different size [-Wint-to-pointer-cast]
nng/src/supplemental/mqtt/mqtt_qos_db.c:620:13: warning: unused variable
‘rv’ [-Wunused-variable]
620 | int rv = sqlite3_exec(db, "COMMIT;", 0, 0, 0);
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