cpr use system default curl?

[bethebest0622]

Is your feature request related to a problem?

i am trying to use cpr in centos stream 8, with default curl.

My system curl is 8.2.1.

but without component http and https.

If i dont turn on CPR_USE_SYSTEM_CURL, cpr seems will compile a curl version, which will mess up.

Possible Solution

how can i set up cpr without install or complieing a new curl version?

[COM8]

I do not really get your question there. What I understand is you want to use cpr with your system curl, but without setting CPR_USE_SYSTEM_CURL?

[bethebest0622]

I use CPR_USE_SYSTEM_CURL, but error was: system curl no component http https found, use system curl failed.

And i cant use the download version, so CPR_USE_SYSTEM_CURL is a must for me

[COM8]

Ah, then curl on your system is not properly configured to include the http and https components. How did you install libcurl on your system?

[COM8]

Did you install libcurl-devel?

[bethebest0622]

yes, i do, i used centos stream 8

[COM8]

What I did:

podman run -i -t quay.io/centos/centos:stream8 /bin/bash

To get a docker container with centos8 stream.

Then I build cpr and got the same error as you.

git clone https://github.com/libcpr/cpr.git
cd cpr
mkdir build && cd build
dnf install -y gcc clang cmake gdb git libcurl-devel openssl-devel
cmake .. -DCMAKE_BUILD_TYPE=Release -DCPR_USE_SYSTEM_CURL=ON -DCPR_BUILD_TESTS=ON -DCPR_BUILD_TESTS_SSL=ON -DCPR_ENABLE_SSL=ON

But this one can be fixed with the following patch:

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5af3657..d41271c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -173,7 +173,7 @@ endif()
 # Curl configuration
 if(CPR_USE_SYSTEM_CURL)
     if(CPR_ENABLE_SSL)
-        find_package(CURL COMPONENTS HTTP HTTPS)
+        find_package(CURL)
         if(CURL_FOUND)
             message(STATUS "Curl ${CURL_VERSION_STRING} found on this system.")
             # To be able to load certificates under Windows when using OpenSSL:

This patch should work since I still had an too old version of curl installed (7.61.1).

[COM8]

Just make sure curl-config --protocols supports HTTP and HTTPS

[COM8]

Closing for no response.