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Static link and fix custom PREFIX #6

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Static link and fix custom PREFIX #6

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@Sjors Sjors commented Aug 1, 2023

This lets you do something like so:

mkdir legacy
mkdir src
git clone https://github.com/bitcoin-core/secp256k1.git
cd secp256k1
git checkout 3db0560606acb285cc7ef11662ce166ed67e9015
./autogen
./configure --prefix=/home/lightning/legacy
make
make install
cd ..

git clone https://github.com/jb55/clightning-dumpkeys
PREFIX=/home/lightning/legacy make

This avoids polluting your normal libraries with an arbitrary (ancient) version of libsecp. As well as lets you do this with root permissions (no /usr/local)

I'm not a build-system guru though.

Sjors
Sjors commented Aug 1, 2023
View reviewed changes
Makefile

LDFLAGS = -lsecp256k1
CFLAGS = $(DEFS) -DHAVE_LITTLE_ENDIAN -O2 -g -I src -Wall -Werror -Wextra -std=c99
LDFLAGS = -l:libsecp256k1.a -L${PREFIX}/lib
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@Sjors Sjors Aug 1, 2023

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The : is what makes it static.

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