[FS#1238] curl: https request returns 'Illegal instruction'

[LEDE Bugs]

A new Flyspray task has been opened.  Details are below. 

User who did this - Óscar García Amor (ogarcia) 

Attached to Project - LEDE Project
Summary - curl: https request returns 'Illegal instruction'
Task Type - Bug Report
Category - Packages
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Medium
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - Environment:

root at LEDE:~# cat /etc/os-release
NAME="LEDE"
VERSION="17.01.4, Reboot"
ID="lede"
ID_LIKE="lede openwrt"
PRETTY_NAME="LEDE Reboot 17.01.4"
VERSION_ID="17.01.4"
HOME_URL="http://lede-project.org/"
BUG_URL="http://bugs.lede-project.org/"
SUPPORT_URL="http://forum.lede-project.org/"
BUILD_ID="r3560-79f57e422d"
LEDE_BOARD="mpc85xx/generic"
LEDE_ARCH="powerpc_8540"
LEDE_TAINTS="no-all"
LEDE_DEVICE_MANUFACTURER="LEDE"
LEDE_DEVICE_MANUFACTURER_URL="http://lede-project.org/"
LEDE_DEVICE_PRODUCT="Generic"
LEDE_DEVICE_REVISION="v0"
LEDE_RELEASE="LEDE Reboot 17.01.4 r3560-79f57e422d"


Description:

I'm using oficial stable release for //TP-Link TL-WDR4900 v1// and when I try to use **curl** I give the following error:

root at LEDE:~# curl https://google.com
Illegal instruction



I have installed all curl dependencies and ca-certificates:
root at LEDE:~# opkg list-installed | egrep "ssl|curl|mbed|ddns"
curl - 7.52.1-6
ddns-scripts - 2.7.6-13
ddns-scripts_cloudflare.com-v4 - 2.7.6-13
libcurl - 7.52.1-6
libmbedtls - 2.6.0-1
libopenssl - 1.0.2n-1
luci-app-ddns - 2.4.8-2
openvpn-openssl - 2.4.4-2

And wget works well:
root at LEDE:~# wget https://google.com
--2017-12-18 13:25:10--  https://google.com/
Resolving google.com... 178.60.128.37, 178.60.128.42, 178.60.128.20, ...
Connecting to google.com|178.60.128.37|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://www.google.es/?gfe_rd=cr&dcr=0&ei=prM3Wp3qOeGs8wfNpI_gDg [following]
--2017-12-18 13:25:10--  https://www.google.es/?gfe_rd=cr&dcr=0&ei=prM3Wp3qOeGs8wfNpI_gDg
Resolving www.google.es... 172.217.21.67, 2a00:1450:4006:807::2003
Connecting to www.google.es|172.217.21.67|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [text/html]
Saving to: 'index.html'

index.html                                       [      ]  12.82K  81.4KB/s    in 0.2s    

2017-12-18 13:25:11 (81.4 KB/s) - 'index.html' saved [13132]


There is an issue with `curl - 7.52.1-6`?

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=1238